首頁 產品展示>Perkins2306A(C)-E14發動機故障維修診斷手冊

        Perkins2306A(C)-E14發動機故障維修診斷手冊

        Perkins2306A(C)-E14發動機故障維修診斷手冊,Perkins2306A(C)-E14發動機故障維修診斷手冊技術支持中心,Perkins2306A(C)-E14發動機故障維修診斷手冊代理商,Perkins2306A(C)-E14發動機故障維修診斷手冊銷售服務中心,Perkins2306A(C)-E14發動機故障維修診斷手冊價格規格資料查詢,寧波日昕動力科技有限公司
        產品咨詢

        詳細描述

        Perkins 2300 Series

        Models 2306A-E14 and 2306C-E14

        DIAGNOSTIC MANUAL

        6 cylinder turbocharged diesel engine

        Publication TSD 3457E, Issue 2.

        © Proprietary information of Perkins Engines Company Limited, all rights reserved.

        The information is correct at the time of print.

        Published in December 2006 by Technical Publications,

        Perkins Engines Company Limited, Peterborough PE1 5NA England.

        Diagnostic Manual, TSD 3457E, Issue 2

        i

        This document is printed from SPI². Not for RESALE

        Chapters

        1    General information

        2    Electronic system overview

        3    Programming parameters

        4    Fault diagnosis

        5    Special Tools

        The following pages contain a detailed table of contents

        ii

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        Contents

        1 General information

        Introduction ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...1

        Safety precautions  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 2

        Glossary of terms  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...3

        2 Electronic system overview

        System operation .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...9

        Electronic controls  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 9

        Engine governor  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...9

        Timing considerations .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...9

        Fuel injection . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .10

        Engine monitoring   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .11

        Fuel temperature monitoring ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... .11

        Self diagnostics   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .11

        Effect of diagnostic codes on engine performance  .. ... ... ... ... ... ... ... ... ... ... ... ... .12

        Current totals stored in the ECM . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .12

        Programmable parameters  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .12

        Passwords . ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .13

        Diagnostic Manual, TSD 3457E, Issue 2

        iii

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        Engine component diagram  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  14

        OEM connection diagram  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  15

        Sensor and connector location diagram . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  16

        Engine wiring diagram .. ... ... ... ... ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... 17

        Machine wiring diagram (all options)  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  18

        Electrical connectors and functions  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  19

        Colour codes .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  19

        Service tools and diagnostics .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  20

        3 Programming parameters

        Connecting the TIPSS-EST ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  21

        Passwords .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  23

        Programming a new ECM  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  24

        Programming an ECM using flash programming ... ... ... ... ... ... ... ... ... ... ... ... ... ...  27

        ECM date/time clock .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  28

        ECM diagnostic clock  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

        Injector codes  ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

        TIPSS-EST cylinder cut-out test ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

        Programming parameters . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  29

        System configuration parameters  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  30

        Customer specified parameters ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  32

        4 Fault diagnosis

        Introduction  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  35

        Diagnostic procedures without a diagnostic fault code

        General information  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  36

        iv

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        Diagnostic symptoms

        Test 1 - Engine will not crank   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .37

        Test 2 - Engine cranks but will not start   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .38

        Test 3 - Engine misfires, runs rough or is unstable ... ...  ... ... ... ... ... ... ... ... ... ... ... ... .39

        Test 4 - Low power/poor or no response to throttle ... ... ... ... ... ... ... ... ... ... ... ... ... ... .40

        Test 5 - Intermittent engine shutdowns  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .41

        Test 6 - Intermittent low power or power cut-outs  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... .42

        Test 7 - Electronic service tool will not communicate with the ECM  . ... ... ... ... ... ... ... .43

        Test 8 - ECM will not accept factory passwords  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .44

        Test 9 - Excessive black smoke  ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .45

        Test 10 - Excessive white smoke  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .46

        Test 11 - Excessive blue smoke  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .47

        Test 12 - Engine cannot reach correct rev/min  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .48

        Test 13 - Poor acceleration or response  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .49

        Test 14 - Poor fuel consumption  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .50

        Test 15 - Too much vibration . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .51

        Test 16 - Noise coming from cylinder  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .52

        Test 17 - Excessive valve clearance  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .53

        Test 18 - Valve rotocoil or spring lock is free   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .54

        Test 19 - Mechanical noise (knock) in engine  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .55

        Test 20 - Oil in cooling system  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .56

        Test 21 - Fuel in cooling system  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .57

        Test 22 - Coolant in lubricating oil  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .58

        Test 23 - Fuel dilution of lubricating oil .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .59

        Test 24 - Engine has early wear  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .60

        Test 25 - Engine has low oil pressure  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .61

        Test 26 - Engine uses too much lubricating oil .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .62

        Test 27 - Engine coolant is too hot  ... ... ... ... ... ... ... ... ... ... ... ... ... ...  ... ... ... ... ... ... .63

        Test 28 - Oil at the exhaust  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .64

        Test 29 - Engine has a fuel supply problem  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .65

        Test 30 - Indicator lamp not functioning correctly .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... .66

        Test 31 - Inlet air manifold temperature is too high  ... ... ... ... ... ... ... ... ... ... ... ... ... ... .67

        Test 32 - Engine has a high fuel temperature  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .68

        Diagnostic procedures with an event code

        General information .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .69

        Event codes ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  .69

        Diagnostic tests

        Test 33 - High intake manifold pressure  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .70

        Test 34 - Low oil pressure  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .71

        Test 35 - High coolant temperature ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  .72

        Test 36 - Engine overspeed  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .73

        Test 37 - High fuel temperature . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .74

        Test 38 - High intake manifold air temperature  . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .75

        Diagnostic Manual, TSD 3457E, Issue 2

        v

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        Diagnostic procedures with a diagnostic fault code

        General information  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  76

        Diagnostic codes ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  76

        Diagnostic terminology . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  78

        Connectors . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  79

        Diagnostic tests

        Test 39 - Inspecting electrical connectors .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  82

        Test 40 - Electrical power supply to the ECM   ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...  88

        Test 41 - Analogue sensor open or short circuit test  . ... ... ... ... ... ... ... ... ... ... ... ... ...  91

        Test 42 - ECM Status indicator output circuit test .. ... ... ... ... ... ... ... ... ... ... ... ... ... .. 101

        Test 43 - +5 V Sensor voltage supply circuit test ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 107

        Test 44 - PWM desired speed setting circuit test ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 112

        Test 45 - Perkins Data Link circuit test  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 118

        Test 46 - Engine speed/timing circuit test  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 126

        Test 47 - Engine speed/timing calibration .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 134

        Test 48 - Injector solenoids circuit test ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 138

        Test 49 - Analogue sensor abnormal test  .. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 146

        5 Special tools

        Required service tools .. ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 149

        Optional service tools ... ... ... ... ... ... ... ...  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. 150

        vi

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        1

        General information

        1

        Introduction

        The 2300 and 2800 Series industrial diesel engines are the latest development from Perkins Engines

        Company Limited, a world leader in the design and manufacture of high performance diesel engines.

        Read and remember the "Safety precautions" on page 2. They are given for your protection and must be

        applied at all times.

        Danger is indicated in the text by two methods:

        Warning! This indicates that there is a possible danger to the person.

        Caution: This indicates that there is a possible danger to the engine.

        Note: Is used where the information is important, but there is not a danger.

        Ensure that all adjustments and repairs are done by personnel who have had the correct training.

        Diagnostic Manual, TSD 3457E, Issue 2

        1

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        Safety precautions

        These safety precautions are important. Reference must also be made to the local regulations in the country

        of operation.

        Only use these engines in the type of application for which they have been designed.

        Do not change the specification of the engine.

        Do not smoke when you put fuel in the tank.

        Clean away fuel which has been spilt. Material which has been contaminated by fuel must be moved to a

        safe place.

        Do not put fuel in the tank while the engine runs (unless it is absolutely necessary).

        Do not clean, add lubricating oil, or adjust the engine while it runs (unless you have had the correct training;

        even then extreme caution must be used to prevent injury).

        Do not make adjustments that you do not understand.

        Ensure that the engine does not run in a location where it can cause a concentration of toxic emissions.

        Other persons must be kept at a safe distance while the engine or equipment is in operation.

        Do not permit loose clothing or long hair near moving parts.

        Keep away from moving parts during engine operation.

        Warning! Some moving parts cannot be seen clearly while the engine runs.

        Do not operate the engine if a safety guard has been removed.

        Do not remove the filler cap of the cooling system while the engine is hot and while the coolant is under

        pressure, because dangerous hot coolant can be discharged.

        Do not use salt water or any other coolant which can cause corrosion in the closed coolant circuit.

        Do not allow sparks or fire near the batteries (especially when the batteries are on charge) because the

        gases from the electrolyte are highly flammable. The battery fluid is dangerous to the skin and especially

        to the eyes.

        Disconnect the battery terminals before a repair is made to the electrical system. Always disconnect the

        negative terminal first.

        Only one person must control the engine.

        Ensure that the engine is operated only from the control panel or from the operator’s position.

        If your skin comes into contact with high-pressure fuel, obtain medical assistance immediately.

        Diesel fuel and lubricating oil (especially used lubricating oil) can damage the skin of certain persons.

        Protect your hands with gloves or a special solution to protect the skin.

        Do not wear clothing which is contaminated by lubricating oil. Do not put material which is contaminated

        with oil into the pockets.

        Discard used lubricating oil in a safe place to prevent contamination.

        The combustible material of some components of the engine (for example certain seals) can become

        extremely dangerous if it is burned. Never allow this burnt material to come into contact with the skin or with

        the eyes.

        Fuel and oil pipes MUST be inspected for cracks or damage before they are fitted to the engine.

        Fit only genuine Perkins parts.

        2

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        Glossary of terms

        Active diagnostic code

        Describes a condition that is currently present to alert the operator or service technician of an abnormal engine

        operation parameter. See also Diagnostic fault code.

        Aftermarket device

        A device or an accessory that is installed by the customer or OEM after the engine has been delivered.

        Alternating current (AC)

        The direction of current flow changes (alternates) regularly and constantly in a circuit.

        Atmospheric pressure sensor

        Analogue sensor generates a signal proportional to atmospheric (barometric) air pressure in the crankcase

        and sends a signal to the ECM.

        Before top center (BTC)

        The 180° of crankshaft rotation before the piston reaches the very top of its travel (normal direction of rotation).

        Intake manifold pressure sensor

        This sensor measures inlet manifold air pressure (boost pressure) and sends a signal to the ECM.

        Bypass circuit

        A circuit, usually temporary, to substitute for an existing circuit, typically for test purposes.

        Calibration

        An electronic adjustment of a sensor signal.

        Perkins engine monitoring

        The part of the Perkins Electronic Engine Control that monitors coolant temperature, oil pressure, intake

        manifold air temperature and coolant level to alert the operator of detected problems. The coolant temperature,

        intake manifold air temperature, and oil pressure sensors are supplied by Perkins and monitored by the ECM.

        Aftermarket engine monitoring systems do not interface with the Perkins Electronic Engine Control.

        Check engine lamp

        Sometimes referred to as the diagnostic lamp, it is used to alert the operator of the presence of an active event.

        Code

        Refer to diagnostic fault code and diagnostic event code.

        Cold mode

        A mode of engine operation where the timing is retarded for engine protection, reduced smoke emissions and

        faster warm up time.

        Diagnostic Manual, TSD 3457E, Issue 2

        3

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        Component identifier (CID)

        The CID is a number that identifies the specific component of the electronic control system that has

        experienced a diagnostic code. This is part of the PDL (Perkins Data Link).

        Communication adapter

        The communication adapter provides a communication link between the ECM and an electronic service tool.

        Coolant temperature sensor

        This sensor detects the engine coolant temperature for Cold Mode operation and Perkins Engine Monitoring.

        Crankshaft position sensor

        A sensor that measures the crankshaft position, the direction of rotation, and engine rev/min and sends signals

        to the ECM.

        Customer specified parameter

        A parameter value that can be changed and whose value is set by the customer. These parameters can be

        protected by customer passwords.

        Desired rev/min

        An input to the electronic governor in the ECM. The electronic governor uses inputs from the crankshaft

        position sensor and customer parameters to determine 'desired rev/min'.

        Diagnostic event code

        These codes indicate an event that describes an abnormal engine condition such as a shutdown occurrence.

        These codes are not necessarily (or usually) an indication of problems within the electronic system.

        Diagnostic fault code

        Sometimes referred to as a "fault code". These codes indicate an electronic system malfunction or problem

        with the engine electronic system.

        Diagnostic lamp

        Sometimes referred to as the "engine check lamp", it is used to alert the operator of the presence of an active

        diagnostic code.

        Direct current (DC)

        The type of current where the direction of current flow is consistently in one direction.

        Duty cycle

        Refer to pulse width modulation.

        Engine control module (ECM)

        The engine control computer that provides power to the engine electronics. It accepts inputs that monitor and

        outputs that control or change to act as a governor to control engine rev/min.

        Electronically controlled unit injector

        The injection pump which is a mechanically actuated, electronically controlled unit injector, combining the

        pumping, electronic fuel metering and injecting elements in a single unit.

        Electronic engine control

        The complete electronic system that monitors and controls the engine operation under all conditions.

        Engine speed/timing sensor

        Provides a variable amplitude and pulse width modulated signal to the ECM, which the ECM interprets as

        crankshaft position and engine speed.

        Estimated dynamic timing

        The ECM's estimation of actual injection timing.

        4

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        Failure mode identifier (FMI)

        Type of failure that has been experienced by the component (adopted from the SAE standard practice of J1587

        diagnostics).

        Flash programming

        A method of programming or updating an ECM with an electronic service tool over the data link instead of

        replacing components.

        Fuel position

        An internal signal within the ECM, from the electronic governor to the fuel injection control. It is based on

        desired rev/min, FRC fuel limit, rated fuel limit, and the actual engine rev/min.

        Fuel ratio control (FRC)

        A limit based on control of the fuel to air ratio and used for emission control purposes. When the ECM senses

        a higher intake manifold pressure (more air into cylinder), it increases the FRC fuel limit (allows more fuel into

        cylinder).

        Fuel temperature sensor

        This sensor detects the fuel temperature. The ECM monitors the fuel temperature and adjusts the calculated

        fuel rate accordingly.

        Full load setting (FLS)

        Number representing fuel system adjustment made at the factory to "fine tune" the fuel system maximum fuel

        delivery. Correct value for this parameter is stamped on the engine information ratings plate. This parameter

        must be programmed or a 268-02 Check Programmable Parameters diagnostic code will be generated.

        Full torque setting (FTS)

        Similar to the Full Load Setting. This parameter must be programmed or a 268-02 Check Programmable

        Parameters diagnostic code will be generated.

        Harness

        The wiring loom that connects all components of the electronic system.

        Hertz (Hz)

        Measure of electrical frequency in cycles per second.

        Diagnostic Manual, TSD 3457E, Issue 2

        5

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        Histogram

        A bar graph indicating the relative frequency of engine operation in specific operating ranges.

        Injector codes

        Four digit code etched on the tappet or stamped on individual injectors of the electronic unit injectors.

        Intake manifold air temperature sensor

        This sensor detects the intake manifold air temperature. The ECM monitors the inlet air temperature and

        coolant temperature to adjust injection timing.

        Integrated electronic controls

        The engine is designed with the electronic controls as a necessary part of the system. The engine will not

        operate without the electronic controls.

        J1939 data link

        An SAE (Society of Automotive Engineers) standard data link used to communicate between the electronic

        engine, the transmission, and/or powertrain controls.

        Logged diagnostic codes

        Describes codes which are stored in memory. These codes are meant to be an indicator of possible causes

        for intermittent problems. Refer to diagnostic fault code.

        Oil pressure sensor

        This sensor measures engine oil pressure and sends a signal to the ECM as part of Perkins Engine Monitoring.

        Open circuit

        Condition where an electrical wire or connection is broken or a switch is open, so that the signal or the supply

        voltage can no longer reach its intended destination.

        Original equipment manufacturer (OEM)

        The manufacturer of equipment in which a Perkins engine is installed.

        Parameter

        A programmable value or limit which determines the characteristics or behaviour of the engine.

        Parameter identifier (PID)

        Two or three digit code which is assigned to each component in order to identify data via the data link to the

        ECM.

        Password

        A group of numeric or alphanumeric characters that is designed to restrict access to parameters. The

        electronic system requires correct passwords in order to change customer specified parameters (customer

        passwords) or certain engine specifications (factory passwords). Passwords are also required to clear certain

        diagnostic codes.

        6

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        Pulse width modulation (PWM)

        A signal consisting of variable width pulses at fixed intervals, whose ratio of "TIME ON" versus total "TIME

        OFF" can be varied (also referred to as "duty cycle").

        ON

        10% Duty Cycle

        OFF

        ON

        50% Duty Cycle

        OFF

        ON

        90% Duty Cycle

        OFF

        TIME

        Example of Pulse Width Modulation (PWM) Signals

        Rated fuel limit

        Indicates the maximum allowable fuel position (longest injection pulse). It will produce rated power for this

        engine configuration.

        Reference voltage

        A regulated, unchanging voltage supplied by the ECM to a sensor. The reference voltage is used by the sensor

        to generate a signal voltage.

        Sensor

        A device that is used to detect and convert a change in pressure, temperature, or mechanical movement into

        an electrical signal.

        Short circuit

        A condition where an electrical circuit is unintentionally connected to an undesirable point. An example of a

        short circuit is a wire which rubs against an engine frame until it eventually wears off its insulation and makes

        electrical contact with the frame.

        Subsystem

        A part of the electronic system that relates to a particular function.

        Supply voltage

        A constant voltage supplied to a component to provide electrical power for its operation. It may be generated

        by the ECM or may be battery voltage supplied by the equipment wiring.

        System configuration parameters

        Parameters that affect the power rating family or emissions.

        "T" harness

        A test harness that is designed to connect into the engine harness which allows normal circuit operation while

        providing a breakout or "T" in order to measure signals.

        Timing calibration

        The adjustment of an electrical signal as a means of correcting the timing error between the crankshaft and

        crankshaft position sensors.

        Diagnostic Manual, TSD 3457E, Issue 2

        7

        This document is printed from SPI². Not for RESALE


         

        1

        2300 Series

        TIPSS-EST

        A service tool software program to run on a personal computer (PC).

        Total tattletale

        Total number of changes to all the customer specified parameters stored in the ECM.

        8

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        2

        Electronic system overview

        2

        System operation

        The 2300 and 2800 Series industrial diesel engines are designed for electronic control. The injection pump,

        fuel lines and nozzles used in mechanical engines have been replaced with an electronic unit injector in each

        cylinder. A solenoid on each injector controls the amount of fuel that is delivered by the injector. An Engine

        Control Module (ECM) sends a signal to each injector solenoid in order to provide complete control of the

        engine.

        Electronic controls

        The electronic system consists of the Engine Control Module (ECM), the engine sensors and the OEM

        interface. The ECM is the computer which controls the engine and contains the software which controls how

        the ECM behaves and stores the operating maps that define power, rev/min, etc.

        Engine governor

        The electronic controls on the engine serve as the engine governor, determining when and how much fuel to

        deliver to the cylinders based on the actual and desired conditions at any given time.

        The ECM uses one of three possible speed control inputs to determine the desired engine speed and

        compares this to the actual engine speed determined through the crankshaft position sensor. If the desired

        engine speed is greater than the actual engine speed, more fuel is injected in order to increase engine speed.

        Timing considerations

        Once the ECM has determined how much fuel is required, it must next determine when to inject the fuel.

        Injection timing is determined by the ECM after considering input from the following components:

        Coolant temperature sensor

        Intake manifold air temperature sensor

        Atmospheric pressure sensor

        Intake manifold pressure sensor

        The ECM determines where top centre on cylinder number one is located from the engine camshaft position

        sensor signal. The ECM decides when injection should occur relative to top centre and provides the signal to

        the injector at the desired time. The ECM adjusts timing for the best engine performance, fuel economy and

        white smoke control.

        Note: Actual or desired timing cannot be viewed with the TIPSS-EST service tool.

        Diagnostic Manual, TSD 3457E, Issue 2

        9

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Fuel injection

        The ECM controls the amount of fuel injected by varying the signals to the injectors. The injectors will pump

        fuel only if the injector solenoid is energized. The ECM sends a high voltage signal to energize the solenoid.

        By controlling the timing and duration of the high voltage signal the ECM can control injection timing and the

        amount of fuel that is injected.

        The software inside the ECM sets certain limits on the amount of fuel that can be injected. The fuel limit is a

        limit based on boost pressure to control the air/fuel ratio for control of emissions. When the ECM senses a

        higher boost pressure (more air into cylinder) it increases the fuel limit (allows more fuel into cylinder).

        The Rated Fuel Limit is a limit that is based on the power rating of the engine and engine rev/min. It is similar

        to the rack stops and torque spring on a mechanically governed engine. It provides power and torque curves

        for a specific engine family and rating.

        Note: All of these limits are determined at the factory in the ECM software and cannot be changed.

        10

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Engine monitoring

        Perkins provides a factory installed engine monitoring system. The Perkins engine monitoring system monitors

        the following parameters:

        Engine oil pressure

        Coolant temperature

        Intake manifold air temperature

        Engine speed

        Boost pressure

        Fuel temperature

        The Perkins engine monitoring system has three levels of operation, WARNING, ACTION ALERT and

        SHUTDOWN as described below.

        Perkins engine monitoring WARNING operation

        In the WARNING condition the ECM causes the Warning lamp to turn ON to indicate a problem has been

        detected by the Engine Monitoring System. No further ECM or engine action occurs.

        Perkins engine monitoring ACTION ALERT operation

        In the ACTION ALERT condition the ECM begins by activating the Action Alert lamp ON to indicate a problem

        has been detected by the Engine Monitoring System. This is also normally wired to cause a shutdown via the

        OEM control panel.

        Perkins engine monitoring SHUTDOWN operation

        If the fault reaches the SHUTDOWN condition the ECM activates the shutdown lamp and unless the engine is

        in CRITICAL OVERRIDE condition, the engine will shutdown.

        Fuel temperature monitoring

        The fuel temperature sensor monitors the fuel temperature, adjusting the ECM calculated fuel rate to

        compensate for fuel temperature changes and to adjust the fuel rate for constant power. The sensor is also

        used to warn the operator of excessive fuel temperature with a diagnostic event code because excessive fuel

        temperatures can adversely affect engine performance.

        Self diagnostics

        The electronic system has the ability to diagnose problems. When a problem is detected, a diagnostic code is

        generated and stored in permanent memory (logged) in the ECM. The diagnostic lamp is also activated.

        When diagnostic codes occur, the diagnostic codes are referred to as Active diagnostic codes. They indicate

        that a problem of some kind currently exists.

        Diagnostic codes that are stored in memory are called Logged diagnostic codes. Since the problem may have

        been temporary, or may have been repaired since the problem was logged, logged codes do not necessarily

        mean that something needs to be repaired. They are instead meant to be an indication of probable causes for

        intermittent problems.

        Diagnostic codes that identify operating conditions outside the normal operating range are called Events.

        Event codes are not typically an indication of an electronic system problem.

        Note: Some of the diagnostic codes require passwords to clear.

        Diagnostic Manual, TSD 3457E, Issue 2

        11

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Effect of diagnostic codes on engine performance

        The discussion on engine monitoring mentions that the diagnostic lamp activates when a specific condition

        exists. When the ECM detects an engine problem, it generates an active diagnostic code and also logs the

        diagnostic code in order to indicate when, and if appropriate, how many times the problem occurred. There are

        two types of diagnostic codes, Fault codes and Event codes.

        Diagnostic fault codes

        These are provided in order to indicate that an electrical or electronic problem has been detected by the ECM.

        In some cases the engine performance can be affected when the condition causing the code exists. More

        frequently, however, no difference in the engine performance can be detected.

        Diagnostic event codes

        Diagnostic event codes are used to indicate that some operational problem has been detected in the engine

        by the ECM. This usually does not indicate an electronic malfunction.

        The ECM also provides an ECM clock with date/time to date and time stamp the following critical event codes:

        360-3 Low oil pressure Shutdown

        361-3 High coolant temperature Shutdown

        For a listing all of the diagnostic fault codes, along with the page number where details regarding the cause,

        performance effect, and diagnosis of the code can be located, refer to "Diagnostic code quick reference" on

        page 80.

        Current totals stored in the ECM

        The ECM maintains engine total data for the following parameters:

        Total time

        The total time is the engine's operating hours. This does not include operating time when the ECM is powered

        ON but the engine is not running.

        Programmable parameters

        Certain parameters affecting engine operation may be changed with the TIPSS-EST service tool. The

        parameters are stored in the ECM, and are protected from unauthorized changes by passwords. These

        parameters are either system configuration parameters or customer parameters.

        System configuration parameters

        These are set at the factory and affect emissions or power ratings within an engine family. Factory passwords

        must be obtained and used to change the system configuration parameters.

        Customer parameters

        These are variable and can be used to tailor the engine to customer requirements within the limits set by the

        factory and Perkins engine monitoring operation. Customer passwords may be required to change customer

        parameters.

        Caution: Some of the parameters may affect engine operation. Without adequate training, these parameters

        may lead to power or performance complaints even when the engine is performing to specification.

        Refer to "Programming parameters" on page 29 for further information.

        12

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Passwords

        System configuration parameters are protected by factory passwords. Factory passwords are calculated on a

        computer system that is available only to Perkins dealers.

        Customer parameters can be protected by customer passwords. The customer passwords are programmed

        by the customer. Factory passwords can be used to change customer passwords if they are lost.

        Refer to "System configuration parameters" on page 30 for further information when passwords are needed

        and how to obtain them.

        Diagnostic Manual, TSD 3457E, Issue 2

        13

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Engine component diagram

        Internal Injector Harness

        12PIN Connector

        Service

        Tool

        Connector

        Interface

        Connector

        OEM Interface Connectors

        Main Engine Harness

        Crank Speed/Timing

        Cam Speed/Timing

        36-1 TOOTH

        CRANK

        GEAR

        Inlet Manifold Temperature

        Sensor

        Fuel Temperature Sensor

        36+1 TOOTH

        CAM GEAR

        Cooolat Temperature Sensor

        Atmospheric Pressure Sensor

        Boost

        Pres Sensor

        Calibration

        Probe

        Lub Oil Pressure

        Sensor

        A

        HA0002

        14

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        OEM connection diagram

        To ECM J1 Connector

        Customer connecter  (If fitted)

        E-Stop

        16A Breaker

        Service Tool

        Connector

        Keyswitch

        Injector D, isable

        Optional

        24V

        Digital Speed  Control

        Optional

        Optional

        Speed

        Raise/Lower

        Critical  Override

        Optional

        Optional

        Throttle Adjust Pot

        Lamp Box

        1: Diagnostics

        2: Caution

        3: Warning

        Speed Control

        4: Shutdown

        5: Overspeed

        6: High Coolant Temp

        7: Low Pressure

        1

        2

        3

        Shutdown

        Reset

        Optional

        droop

        adjust

        -B

        S

        D

        +B

        Switched

        Battery +ve

        Optional

        Droop/Isoch

        Optional

        Potentiometer

        0.5-4.5V

        Speed

        Selection

        Optional

        Screen tied  to

        ECM -VE

        A

        HA0003

        Diagnostic Manual, TSD 3457E, Issue 2

        15

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Sensor and connector location diagram

        1 Electronic Control Module (ECM)

        2 J1/P1 Machine connector

        3 J2/P2 Engine connector

        4 Atmospheric pressure sensor

        5 Oil pressure sensor

        6 Crankshaft position sensor

        7 Fuel temperature sensor

        8 Camshaft position sensor

        9 Coolant temperature sensor

        10 Intake manifold pressure sensor

        11 Intake manifold air temperature sensor

        12 Electronic unit injector connector

        13 Timing calibration pickup connector

        16

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Engine wiring diagram

        ECM

        5

        7

        6

        J2/44

        J2/45

        J2/46

        J2/55

        J2/54

        J2/39

        J2/38

        J2/37

        J2/36

        Injector Common Cylinders 1 & 2

        Injector Common Cylinders 3 & 4

        Injector Common Cylinders 5 & 6

        Injector Cylinder 6

        Injector Cylinder 5

        Injector Cylinder 4

        Injector Cylinder 3

        Injector Cylinder 2

        Injector Cylinder 1

        B

        B

        B

        A

        P

        G

        W

        B

        B

        B

        A

        P

        G

        W

        K

        10

        3

        11

        2

        12

        1

        K

        R

        R

        Injector

        Cyl 1

        Injector

        Cyl 2

        Injector

        Cyl 3

        Injector

        Cyl 4

        Injector

        Cyl 5

        Injector

        Cyl 6

        J300 P300

        Atmospheric Pressure Sensor

        +5V

        Signal

        Return

        A

        C

        B

        J2/2

        J2/14

        J2/3

        +5VDC Supply

        Atmospheric Pressure

        Analogue Return

        O

        U

        N

        P203  J203

        Intake Manifold Pressure Sensor

        +5V

        Signal

        Return

        A

        C

        B

        Intake Manifold  Pressure

        J2/40

        U

        P200  J200

        Oil Pressure Sensor

        +5V

        Signal

        Return

        A

        C

        B

        J2/24

        J2/32

        J2/33

        Oil Pressure

        A

        P201  J201

        Coolant Temperature Sensor

        Coolant Temperature

        Signal

        Return

        C

        B

        U

        J100  P100

        Fuel Temperature Sensor

        C

        Fuel Temperature

        Signal

        Return

        U

        B

        J105  P105

        Inlet Air Temperature Sensor

        Signal

        Return

        C

        B

        J2/35

        J2/18

        Inlet Air Temperature

        Return

        U

        N

        J103  P103

        Crankshaft Position Sensor

        Signal

        Return

        2

        1

        J2/48

        J2/49

        Crank Speed Timing +

        Crank Speed Timing -

        Y

        U

        J401  P401

        Camshaft Position Sensor

        Signal

        Return

        2

        1

        J2/58

        J2/59

        Cam Speed timing +

        Cam speed timing -

        Y

        U

        J402  P402

        Calibration Probe

        Signal

        Return

        1

        2

        J2/22

        J2/23

        Calibration Probe +

        Calibration Probe -

        Y

        U

        J400  P400

        P2  J2

        A

        HA0005

        Diagnostic Manual, TSD 3457E, Issue 2

        17

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Machine wiring diagram (all options)

        This Wiring Supplied By OEM

        Outputs may be used to

        drive lamps or relays

        Customer

        Interface

        Connector

        J3  P3

        11

        ECM

        Engine Running

        Shutdown

        Engine Running Output

        J1/13

        J1/10

        W

        G

        16

        5

        Shutdown lamp Output

        Action Alert Lamp Output

        Warning Lamp Output

        System Fault Lamp Output

        Action Alert

        J1/19

        U

        Warning

        4

        3

        J1/20

        J1/31

        P

        I

        Diagnostics

        Oil Pressure

        8

        J1/28

        J1/29

        Oil Pressure Lamp Output

        O

        N

        Coolant Temp

        17

        Coolant Temperature Lamp Output

        Overspeed Lamp Output

        Overspeed

        9

        J1/30

        J1/49

        A

        2

        Digital Speed Control Enable

        Injection Disable

        Digital Speed

        Control Enable

        G

        U

        P

        K

        O

        N

        A

        Y

        34

        J1/62

        J1/59

        Injection

        Disable

        29

        35

        Lower Speed

        Lower

        Speed

        J1/64

        J1/7

        Shutdown Emergency Override

        Raise Speed

        Critical Override

        28

        Raise

        Speed

        25

        26

        18

        12

        J1/56

        1500/1800 rpm Select

        Droop/Isochronous

        Fault Reset

        1500/1800

        rpm Select

        J1/46

        Droop/

        Isochronous

        J1/41

        J1/18

        Fault Reset

        Digital Ground

        - Battery

        B

        B

        27

        22

        J1/67

        J1/5

        Ground

        Ground

        To PWM

        Speed Control

        (If Required)

        B

        PWM

        36

        21

        J1/66

        J1/4

        PWM Input

        +8V

        W

        R

        +8V

        23

        20

        680R

        B

        B

        5K Analogue

        Speed Setting

        Potentiometer or

        Input from Load

        Sharer/Synchroniser

        J1/3

        Analogue Ground

        Analogue Speed Input

        +5V

        24

        19

        38

        J1/17

        J1/2

        W

        R

        B

        680R

        J1/61

        J1/63

        J1/65

        J1/48

        J1/52

        J1/53

        - Battery

        - Battery

        Charging

        Alternator

        39

        B

        - Battery

        40

        15

        33

        GRD

        POS

        B

        Emergency

        Stop Button

        Unswitched + Battery

        R

        R

        R

        Unswitched + Battery

        Unswitched + Battery

        1

        10

        31

        32

        11

        7

        J1/70

        J1/50

        J1/34

        J1/42

        Switched + Battery

        J1939 Data Link +

        Key

        Switch

        Y

        G

        Circuit

        Breaker

        J1939

        J1939 Data Link -

        J1939 Screen

        Data

        Link

        A

        Starter

        Motor

        Perkins Data Link +

        Perkins Data Link -

        Perkins

        Data

        Link

        J1/8

        J1/9

        G

        6

        Start

        N

        Button

        J1/55

        J1/69

        Unswitched + Battery

        - Battery

        R

        B

        -

        +

        P1  J1

        Battery

        9 Pin Perkins Data

        Link Connector

        24V DC

        J

        H  C   G   F

        D  E   A  B

        A

        HA0006

        18

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Electrical connectors and functions

        Connector

        Function

        J1/P1

        ECM connector (70-Pin OEM harness)

        J2/P2

        ECM connector (70-Pin Engine harness)

        J3/P3

        Machine wiring connector (40-Pin connector) - optional

        Engine coolant temperature sensor (2-pin connector)

        Engine intake manifold temperature sensor (2-pin connector)

        Engine fuel temperature sensor (2-pin connector)

        Engine intake manifold pressure sensor (3-pin connector)

        Engine oil pressure sensor (3-pin connector)

        J100/P100

        J103/P103

        J105/P105

        J200/P200

        J201/P201

        J203/P203

        J300/P300

        J400/P400

        J401/P401

        J402/P402

        Engine atmospheric pressure sensor connector (3-pin connector)

        Injector solenoid harness (12-pin connector)

        Engine timing calibration probe (2-pin connector)

        Crankshaft position sensor (2-pin connector)

        Camshaft position sensor (2-pin connector)

        Colour codes

        Key letter

        Colour

        Brown

        Blue

        N

        U

        R

        P

        Red

        Purple

        Green

        White

        Yellow

        Black

        Orange

        Pink

        G

        W

        Y

        B

        O

        K

        A

        Grey

        Diagnostic Manual, TSD 3457E, Issue 2

        19

        This document is printed from SPI². Not for RESALE


         

        2

        2300 Series

        Service tools and diagnostics

        The Perkins TIPSS-EST service tool is designed to help the service technician analyse and locate faults or

        problems within the system. They are required to perform calibrations and to read or change engine

        parameters.

        Perkins TIPSS-EST is a software program that runs on a personal computer and requires a communication

        adapter to translate information from the Perkins Data Link to the computer RS232 port.

        Perkins TIPSS-EST can be used to display the following information:

        Programmable parameter settings

        Active and logged diagnostic codes

        Logged events

        Engine rating history

        Histograms

        Custom data

        ECM date/time clock

        Perkins TIPSS-EST can also be used to perform the following functions:

        Diagnostic tests

        Sensor calibrations

        Flash programming

        Parameter programming

        Copy configuration (ECM replacement)

        Data logging

        Real time graphing

        There are several adapter cables, breakout T cables, etc that are used in order to access measurements of

        signals. A heavy duty multimeter is suitable in order to make the necessary measurements. A multimeter that

        has the ability to measure duty cycle may also be required. Other special tools include those needed to

        measure pressure and temperature. For further details refer to Chapter 5, Special tools.

        A diagnostic code reader is also available. This is a hand held unit which allows reading certain parameters

        and diagnostic codes.

        20

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        3

        Programming parameters

        3

        Connecting the TIPSS-EST

        The communications adapter is powered by 24 Volts DC from the engine battery. This permits operation

        beside the engine to allow use during engine operation.

        Use the following procedures to connect the service tool to the engine.

        1  Stop the engine by turning the key switch to the OFF position.

        2  Connect the service tool harness cable on the engine to the communication adapter. Refer "Connecting

        TIPSS-EST using a TIPSS communication adapter" on page 22.

        3  Connect the communication adapter to the PC using the appropriate cable.

        4  Turn the key switch to the ON position in order to begin testing. The service tool will operate while the engine

        is running or with the engine OFF and the key switch ON. If the tool does not communicate with the ECM

        disconnect and reconnect the diagnostics connector cable. Check the communication. If the problem is still

        present refer to Test 45: Perkins Data Link circuit test on page 118.

        Notes:

        The service tool may restart during engine cranking due to a voltage dip on the battery line.

        The TIPSS-EST must be configured to communicate with the specific type of communication adapter used.

        Go to the "Preferences" menu that is located under "Utilities" in order to select the appropriate

        communication adapter.

        Diagnostic Manual, TSD 3457E, Issue 2

        21

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Connecting TIPSS-EST using a TIPSS communication adapter

        1 PC with TIPSS-EST installed

        2 PC to communication adapter cable (27610169)

        3 Communication adapter (27610165)

        4 Service tool harness cable (27610168)

        1

        4

        2

        3

        A

        HA0007

        22

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Passwords

        Factory passwords

        Factory passwords are required to perform each of the following functions:

        1  Program a new ECM

        When an ECM is replaced the system configuration parameters must be programmed into the new ECM. A

        new ECM will allow these parameters to be programmed once without factory passwords. After the initial

        programming these parameters are protected by factory passwords.

        2  Rerate to another engine family

        This requires changing the ECM software code, which is protected by factory passwords.

        3  Read customer passwords

        If the owner loses his customer passwords, he will not be able to program customer parameters. By using

        factory passwords, one can read customer passwords, then use those customer passwords to program

        customer parameters.

        4  Clear certain diagnostic codes

        Diagnostic code 253-02 Incorrect ECM software requires a factory password to clear the code. This diagnostic

        code should be cleared only if you are certain that the ECM software is for the specific engine.

        Caution: Operating the engine with ECM software not designed for that engine will result in engine damage.

        Be sure the ECM software is correct for your engine.

        5  Certain other codes require customer passwords. The majority of logged codes do not require passwords

        to be cleared. To obtain factory passwords, proceed as if you already have the password. At some point, if the

        factory passwords are actually needed, TIPSS-EST will request the factory passwords and display the

        information required to obtain the passwords.

        Customer passwords

        If customer passwords have been entered, they are then required to change ANY customer parameter.

        TIPSS-EST can be used to change customer parameters. To obtain customer passwords, contact the supplier

        of the equipment. If the owner has lost the passwords, customer passwords may be read by using TIPSS-EST

        (factory passwords are required in order to read customer passwords) by using the following procedure.

        1  In TIPSS-EST access "Passwords" under the "Information" menu.

        2  When the "Factory Password" screen appears, record the information listed.

        3  Obtain the factory passwords. The information recorded above must be provided, and generates a

        permanent record at Perkins of the access.

        4  From the "Factory Password" screen, enter the factory passwords.

        5  When the "View Customer Passwords" screen appears, record the customer passwords. The customer

        passwords may then be used to change customer parameters.

        Diagnostic Manual, TSD 3457E, Issue 2

        23

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Programming a new ECM

        The Engine Control Module or ECM is the brain of the system. When a problem occurs, it is easy to assume

        that the ECM is responsible. This is usually the wrong conclusion.

        Most failures occur at the wiring and connectors or at a sensor input/output. Follow the diagnostic test

        procedures and do not replace an ECM on speculation.

        However, when your diagnosis indicates that a failure has in fact occurred in the ECM, the following procedure

        outlines the steps required to replace a faulty ECM.

        Note: If an ECM replacement is required, the ECM parameters and injector trim codes can be transferred from

        the suspect ECM to the replacement ECM. This feature requires TIPSS-EST and is only possible if the suspect

        ECM can communicate with the TIPSS-EST.

        Replacing the ECM using TIPSS-EST ECM replacement feature

        Note: The Test ECM referred to below is another identical ECM to that fitted to the engine. There is no special

        Test ECM available.

        1  Ensure that the ECM is the problem by first temporarily connecting a test ECM. Hang the test ECM on the

        side of the engine. Flash program the identical software that was used in the suspect ECM into the test ECM.

        Use the TIPSS-EST ECM replacement feature to copy the parameter configuration of the suspect ECM into

        the test ECM. Ensure that the parameters in the test ECM are programmed the same as the parameters in the

        suspect one.

        2  If the test ECM repairs the problem, reconnect the suspect ECM. Check that the problem returns when the

        suspect ECM is reconnected.

        3  Select the ECM Replacement feature under the "Service/Copy Configuration" menu and load the

        parameters from the failed ECM.

        4  Temporarily connect the new ECM by connecting both ECM connectors. Do not mount the ECM on the

        engine yet.

        5  Flash program the ECM software into the new ECM if the software is not already installed.

        Note: The new ECM may be shipped with no software installed or may have been pre-flashed at the factory.

        Following reflashing the engine may be inoperable until a factory password has been obtained.

        6  Use the TIPSS-EST ECM replacement feature to program the new ECM

        7  Enter rating number parameter into the new ECM

        8  Check for active codes. Program any required parameters that have not been programmed.

        Note: On initial power-up of a new ECM, the Rating Number parameter must be programmed to avoid a

        268-02 Check Programmable Parameters diagnostic code.

        Install the new ECM on the engine and after checking for correct operation perform a timing calibration.

        24

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Replacing the ECM (if ECM replacement feature cannot be used)

        1  Ensure that the ECM is the problem by first temporarily connecting a test ECM. Hang the test ECM on the

        side of the engine. Flash program the identical software that was used in the suspect ECM into the test ECM.

        Program any parameters that are necessary to use the ECM for the test. Program the parameters exactly the

        same as they are in the suspect ECM.

        2  If the test ECM repairs the problem, reconnect the suspect ECM. Check that the problem returns when the

        suspect ECM is reconnected.

        3  Obtain customer parameters from the failed ECM

        Obtain and record the customer passwords. If the customer has lost or forgotten their passwords, obtain

        factory passwords to get them.

        Use TIPSS-EST to access customer specified parameters from the ECM that is being replaced. If the ECM

        does not communicate with the electronic service tool, obtain the required parameter list from the OEM.

        Record the customer parameters.

        4  Record ECM current totals

        5  Temporarily connect the new ECM by connecting both ECM connectors. Do not mount the ECM to the

        engine until the timing calibration has been performed.

        6  Flash program the software into the new ECM if the software is not already installed.

        Note: The new ECM may be shipped with no software installed, or may have been pre-flashed at the factory.

        7  Obtain factory passwords if required. The following parameters can be programmed once on a new ECM

        without factory passwords:

        Full Load Setting (FLS)

        Full Torque Setting (FTS)

        Engine serial number

        System configuration parameters must be entered before the customer specified parameters are entered

        If customer parameters are entered before the system configuration parameters, the total tattletale will change.

        It will then be necessary to obtain another set of factory passwords in order to access system configuration

        parameters.

        8  Record the following information from the engine information plate:

        Engine serial number

        Obtain the following information from the factory:

        Full Load Setting (FLS)

        Full Torque Setting (FTS)

        Injector Trim Codes

        Use TIPSS-EST to access system configuration parameters. When the "Factory Specified Passwords" screen

        appears record the following information:

        ECM serial number

        Engine serial number

        TIPSS-EST serial number

        Total tattletale

        Reason code

        Leave TIPSS-EST on the "Factory Specified Passwords" screen and obtain the factory passwords.

        Continued

        Diagnostic Manual, TSD 3457E, Issue 2

        25

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        9  Program the new ECM

        On initial powerup of a new ECM the following three parameters must be programmed to avoid a 268-02

        Check Programmable Parameters diagnostic code:

        Full Load Setting (FLS)

        Full Torque Setting (FTS)

        Engine serial number

        Use TIPSS-EST to access system configuration parameters. Enter the recorded values for the following

        parameters:

        Full Load Setting (FLS)

        Full Torque Setting (FTS)

        Engine serial number

        Injector trim codes

        Use TIPSS-EST to access customer specified parameters. Enter the customer specified parameters and the

        original customer passwords.

        Use TIPSS-EST to access current totals from the "Read/Change Current Totals" main menu. Using the

        recorded factory passwords enter the totals from the original ECM.

        Use the "Service\Calibrations\Timing Calibration" menu to calibrate the timing. Refer to Test 46: Engine

        speed/timing circuit test on page 126.

        10  Install the new ECM on the engine.

        26

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Programming an ECM using flash programming

        1  Connect the PC to the appropriate communication adapter and connect the communication adapter to the

        ECM. Refer to "Connecting TIPSS-EST using a TIPSS communication adapter" on page 22.

        2  Start the WinFlash PC Program.

        3  Ensure that the key switch is ON and the engine is OFF.

        4  Select the part number of the engine software that needs to be programmed into the ECM and proceed with

        programming. A new ECM is shipped with no software loaded.

        Note: The WinFlash PC program provides the ECM, application and software part number of the selected file.

        Ensure that this file matches the engine before you begin to Flash the file into the ECM

        PC program software messages and their meaning

        A new ECM comes unprogrammed. An unprogrammed ECM will prompt you for all three of the following

        messages. The information that is contained in the ECM Status will be scrambled and meaningless if the

        module has not been programmed previously (this is normal).

        Message: The engine ID in the flash file does not match the engine ID in the ECM

        Meaning: The ECM has software for a different engine.

        Solution: Stop the transfer and access information about the ECM Status under the "Electronic Control

        Module" menu. Ensure that the file you are about to transfer matches the engine application.

        Message: The application ID in the flash file does not match the application ID in the ECM

        Meaning: The ECM has software for a different application.

        Solution: Stop the transfer and access information about the ECM Status under the "Electronic Control

        Module" menu. Ensure that the file you are about to transfer is for the correct engine type.

        Message: The ID of the ECM in the flash file does not match the ID of the ECM in the ECM

        Meaning: The ECM is not for use with this application.

        Solution: Stop the transfer and access information about the ECM status under the "Electronic Control

        Module" menu. Ensure that the ECM on the engine is for the correct application.

        Note: If you access the ECM status under the "Engine Control Module" menu, but do not program the ECM,

        complete the following procedure.

        Turn the key switch to the OFF position, and then to the ON position before using TIPSS-EST. If the key switch

        is not cycled after reading the ECM Status, the ECM will not communicate with your service tool or will not start.

        Cycling the key switch is not necessary after the software has been successfully programmed using the

        WinFlash program.

        5  Start the engine and check for correct operation.

        Program any parameters not previously in the old software if a 268-02 Check Programmable Parameters

        diagnostic code is active. Read the diagnostic code from service tool "Active Diagnostic Code" screen in order

        to determine the parameter(s) requiring programming.

        On initial powerup of a new ECM three parameters must be programmed to avoid a 268-02 Check

        Programmable Parameters diagnostic code:

        Full Load Setting (FLS)

        Full Torque Setting (FTS)

        Engine serial number

        Refer to "Programming a new ECM" on page 24.

        Diagnostic Manual, TSD 3457E, Issue 2

        27

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        ECM date/time clock

        ECM date/time stamped information

        The ECM date and time can be programmed with the TIPSS-EST service tool (factory passwords are required

        to change these parameters). This will display the programmed date in month/day/year format and the

        programmed time in hour:minute:second format. The tool has the option to program any date/time or

        automatically select the date/time stored in the PC real time clock.

        The date and time will remain programmed in the ECM even if the unswitched battery connections are

        removed.

        The ECM Date/time clock is used to stamp the following critical event codes:

        360-3 Low oil pressure Shutdown

        361-3 High coolant temperature Shutdown

        Before adjusting the ECM date/time clock

        Before adjusting the ECM date/time clock, ask the owner/operator if the time stamped information should be

        recorded. After the time stamped information is recorded, clear this information before adjusting the ECM date/

        time clock. This is a very important step if the adjustment of the clock is a big adjustment. This will prevent

        unnecessary confusion if someone else views the information at a later date.

        Determining time stamped information occurrence

        When viewing time stamped information remember that someone may have incorrectly or never set the clock.

        Use the time currently set in the ECM to compare any ECM recorded information to the time the ECM indicates

        to determine how long ago the time stamped event occurred.

        Caution: Do not replace an ECM because of an incorrect time.

        The following example indicates the correct use of the clock.

        Example use of ECM date/time stamped information

        The TIPSS-EST service tool indicates a Low Oil Pressure occurred on NOV 19 1998 10:30:46 and that the

        current time of day in the ECM is NOV 24 1998 11:20:58.

        This indicates that the problem occurred approximately 5 days and 50 minutes ago.

        Caution: Do not compare it to the current time at your location.

        If the ECM time is significantly different than your current time, for example the wrong month is programmed,

        ensure you have recorded the time stamped information if it is important. After recording the information, clear

        the code and then adjust the clock.

        28

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        ECM diagnostic clock

        The diagnostic clock should not be confused with the ECM date/time clock. The diagnostic clock records the

        actual hours the ECM has been powered (key switch ON and engine running). This information is maintained

        even if the unswitched battery connections are removed. The clock information is used to log diagnostic code

        and event code occurrences. Logged diagnostic codes and event codes display the diagnostic clock hour of

        the first and last occurrence and the total number of occurrences.

        Note: Actual engine running hours (total time) can be obtained from the "Current Totals" menu of TIPSS-EST.

        Injector codes

        Injector codes are etched on each injector. The injector codes can be viewed/changed using TIPSS-EST by

        selecting the "Calibrations" screen under the "Service" menu. The injector codes calibration is located under

        the "Calibration" menu. The injector code must match the code on the corresponding injector. When an injector

        is replaced, reprogram the new code for the new injector.

        TIPSS-EST cylinder cut-out test

        The 2300 and 2800 Series engines use electronic fuel injectors. These injectors are mechanically actuated

        and electronically energized. The cylinder cut-out tests are used to confirm that the cylinders are functioning

        correctly.

        The cylinder cut-out test allows a specific cylinder to be cut out while the fuel position is monitored for the

        remaining cylinders.

        To perform a cylinder cut-out test, connect TIPSS-EST to the diagnostic connector as described in

        "Connecting the TIPSS-EST" on page 21, and select the Cylinder cut-out test located under the "Diagnostics"

        menu.

        The Cylinder cut-out test opens with the manual test. At the bottom of the TIPSS-EST screen there is a row of

        buttons that function as follows:

        Change toggles the highlighted cylinder between powered and not powered

        Power All returns all cylinders to the normal operating state

        Start initiates the automated Cylinder cut-out test.

        Stop terminates the automated test.

        Results displays the test results.

        Print allows the contents of the screen to be previewed or to be sent to a file or printer.

        Programming parameters

        Many programmable parameters affect engine operation. These parameters may be changed by using the

        TIPSS-EST service tool. The parameters are stored in the ECM. Whilst any parameter can be read, passwords

        can be used to protect parameters from unauthorized changes.

        Two categories contain these various parameters:

        System configuration parameters

        System configuration parameters can only be altered with factory passwords by using TIPSS-EST.

        Customer specified parameters

        Customer specified parameters can be changed by using the TIPSS-EST service tool (this may require

        customer passwords if customer passwords have been programmed). Refer to "Passwords" on page 13 for

        more details on how to receive and use factory and customer passwords.

        Diagnostic Manual, TSD 3457E, Issue 2

        29

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        System configuration parameters

        System configuration parameters affect critical settings for the engine. They are programmed at the factory

        and would normally never need to be changed through the life of the engine. A complete list of these

        parameters is given in the table on the following page.

        Note: System Configuration Parameters must be reprogrammed if an ECM is replaced. Failure to programme

        these parameters will result in a 268-02 Check Programmable Parameters diagnostic code.

        Proper values for these parameters are stamped on the engine information ratings plate located on the valve

        cover or air inlet manifold. Factory passwords are required to change these parameters. The following

        information is a description of the system configuration parameters.

        Full Load Setting (FLS)

        Number representing fuel system adjustment made at the factory to “fine tune” the fuel system. The correct

        value for this parameter is stamped on the engine information ratings plate. A new ECM requires this

        parameter to be programmed to avoid generating a 268-02 Check Programmable Parameters diagnostic code.

        Full Torque Setting (FTS)

        Similar to Full Load Setting. This parameter must be programmed to avoid generating a 268-02 Check

        Programmable Parameters diagnostic code.

        Software part number

        This is the part number of the software flashed into the ECM.

        Engine serial number

        This should be programmed to match the engine serial number that is stamped on the engine information plate.

        A new ECM is delivered without the engine serial number programmed.

        ECM serial number

        This is a read-only parameter which displays the serial number of the ECM.

        Software release date

        This parameter is defined by the ECM software and is not programmable. It is used to provide the version of

        the software. Customer parameters software changes can be tracked by this date. The date is provided in the

        month and year (NOV99), where NOV is the month (November) and 99 is the year (1999).

        Critical override switch installed

        The critical override switch, if fitted and enabled, allows the engine to continue running even if engine oil

        pressure or coolant temperature have reached the limits where the engine would normally be shutdown. If the

        engine is run in this condition, the engine warranty is void and any events occurring are stored in the ECM with

        time and date stamping. Implementation of this facility requires a factory password.

        Total tattletale

        Displays the total number of times the configuration parameters have been changed.

        30

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Configuration parameters

        Configuration Parameter Description

        R/W Security

        Selected Engine Rating

        Rating Number

        Customer

        Rated Frequency

        Read Only

        Read Only

        Read Only

        Read Only

        Read Only

        Customer

        Rated Genset Speed

        Rated Real Genset Power

        Rated Apparent Genset Power

        Engine Rating Application Type

        External Speed Selection Switch Installed

        ECM Identification Parameters

        Equipment ID

        Customer

        Factory

        Engine Serial Number

        ECM Serial Number

        Read Only

        Read Only

        Read Only

        Read Only

        ECM Software Part Number

        ECM Software Release Date

        ECM Software Description

        Security Access Parameters

        Total Tattletale

        Read Only

        Engine/Gear Parameters

        Engine Acceleration. Rate

        Droop/Isochronous Switch Installed

        Droop/Isochronous Selection

        Engine Speed Droop

        Customer

        Customer

        Customer

        Customer

        Factory

        Critical Override Switch Installed

        Digital Speed Control Installed

        Speed Control Min Speed

        Speed Control Max Speed

        Digital Speed Control Ramp Rate

        Crank Terminate Speed

        I/O Configuration Parameters

        Desired speed Arrangement

        System Parameters

        Customer

        Customer

        Customer

        Customer

        Customer

        Customer

        FLS

        Factory

        Factory

        None

        FTS

        Governor ProportionalGain

        Governor Minimum Stability Factor

        Governor Maximum Stability Factor

        Passwords

        None

        None

        Customer Password 1

        Customer

        Customer

        Customer Password 2

        Diagnostic Manual, TSD 3457E, Issue 2

        31

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Customer specified parameters

        Customer specified parameters allow the OEM to modify engine parameters to suit the application.

        Customer parameters may be changed repeatedly as a customer changes his requirements. Customer

        passwords are required to change these parameters.

        The following information is a brief description of the customer specified parameters.

        Rating duty selection

        This enables selection of the engine rating from a series of maps within the ECM. Changing the rating requires

        a customer password. The available ratings within the ECM will vary with engine type and specification.

        Rated frequency

        This displays the rated frequency of the set, i.e. 50 Hz or 60 Hz, determined by the rating selection and the

        status of the external speed selection switch. This parameter is read only.

        Rated speed

        This displays the rated speed of the engine, i.e. 1500 rev/min or 1800 rev/min, determined by the rating

        selection and the status of the external speed selection switch. This parameter is read only.

        Rated real genset power

        This displays the maximum power in kW of the currently selected rating. This parameter is read only.

        Rated apparent genset power

        This displays the maximum power in kVA of the currently selected rating. This parameter is read only.

        Rating configuration

        This displays the configuration of the currently selected rating. The possible configurations are:

        Standby power

        Limited time prime power

        Prime power

        Continuous or baseload power

        For definitions of these ratings, refer to ISO8528. This parameter is read only.

        Note: Not all of the above rating configurations will be available in a given ECM software file.

        External speed selection switch enable

        For dual speed (1500 rev/min or 1800 rev/min) applications, where an external speed selection switch is

        required, this parameter enables the functionality of the speed selection switch within the software. Changing

        this parameter requires a customer password.

        Engine startup acceleration rate

        Enables the acceleration rate of the engine in rev/min/s, from idle speed to rated speed, to be programmed.

        Control of this parameter enables any overshoot in speed on start up to be limited. Changing this parameter

        requires a customer password.

        Droop/isochronous switch enable

        Determines whether the external droop/isochronous switch is enabled or disabled. Changing this parameter

        requires a customer password.

        Droop/isochronous selection

        The engine will normally be run in isochronous mode i.e. the engine speed is the same at all loads. For certain

        applications where parallel operation with another generating set or with the grid is required, it is necessary for

        stability reasons to run in droop condition where engine speed drops with load. This parameter enables droop/

        isochronous running selection. Changing this parameter requires a customer password.

        Note:  , If an external droop/isochronous switch is enabled, the position of this switch will over-ride the Droop/

        Isochronous selection.

        32

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Engine speed droop

        If droop operation is selected, this parameter allows the setting of percentage droop i.e. the percentage that

        the engine speed will drop with load. This parameter has no effect when the engine is running in isochronous

        mode. Changing this parameter requires a customer password.

        Digital speed control installed

        This parameter determines whether raise/lower switch input control of engine speed is installed. If digital speed

        control is not installed, speed control reverts to the analogue or PWM inputs depending on which input is

        selected via the desired speed input configuration detailed on the following page. Changing this parameter

        requires a customer password.

        Digital speed control min speed

        This setting determines the minimum speed range of both the raise/lower button control and the analogue

        control, for example: if this is set to 100 rev/min and the nominal engine speed is selected for 1500 rev/min,

        the minimum speed setting is 1400 rev/min. It does not affect the PWM speed control range which has fixed

        min/max limits. Changing this parameter requires a customer password.

        Digital speed control max speed

        This setting determines the maximum speed range of both the raise/lower button control and the analogue

        control, i.e. if this is set to 100 rev/min and the nominal engine speed is selected for 1500 rev/min, the

        maximum speed setting is 1600 rev/min. It does not affect the PWM speed control range which has fixed min/

        max limits. Changing this parameter requires a customer password.

        Digital speed control ramp rate

        This setting determines the rate of change of engine speed in rev/min/s when the raise/lower switch inputs are

        closed. Changing this parameter requires a customer password.

        Crank terminate speed

        This parameter is used to set the engine speed at which the crank terminate relay output will be switched.

        Changing this parameter requires a customer password.

        Desired speed input arrangement

        This parameter allows selection of the analogue or PWM external speed control if the digital speed control is

        not installed. The Analogue or PWM speed control inputs are normally used with generating set load sharing

        and synchronising controllers. Changing this parameter requires a customer password.

        Note:  If PWM or Analogue speed control is selected but there are no inputs to the selected speed control

        terminals, the engine will default to running at 1100 rev/min.

        If it is not intended to use PWM or analogue speed control then the Digital speed control should be selected.

        Governor gain parameters

        The adjustable Governor Gain parameters are:

        Governor Gain Factor

        Governor Minimum Stability Factor

        Governor Maximum Stability

        Notes:

        No engineering units associated with these numbers.

        The programmable range is wide for flexibility. The values are valid from 1- 40000. This wide programmable

        range may not be fully used on any system. Do not expect to use the whole range.

        Diagnostic Manual, TSD 3457E, Issue 2

        33

        This document is printed from SPI². Not for RESALE


         

        3

        2300 Series

        Gain explanations

        Governor gain factor

        The governor gain factor is multiplied to the difference between desired speed and actual speed.

        If the governor gain factor value is too large, the engine speed can overshoot the desired speed. The

        overshoot is caused by an overcorrection or a steady state instability.

        If the governor gain factor is too small, the response necessary to accelerate the engine to the desired

        speed must be obtained by ramping the stability terms to a higher value. This process is time consuming

        so, as a result, the engine speed is slow to respond.

        Governor minimum/maximum stability factor

        The stability factor terms work to eliminate a steady state speed error. There are two gain terms used for

        stability. If the error is greater than 20 rev/min and the error is increasing, then the maximum stability gain is

        functioning. If the error is less than 20 rev/min, then the minimum stability gain is used. This function allows

        the use of a high gain that would otherwise cause the engine to be unstable when the engine is operating near

        the desired speed.

        If either the minimum stability gain or the maximum stability gain is set too high, the governor will provide

        more fuel than is necessary to bring the error to zero. The additional fuel will cause the engine speed to

        overshoot and ring.

        If either the minimum stability gain or the maximum stability gain is set too low, the engine will take too long

        to arrive at a steady state speed.

        Tuning procedure

        1  Turn the key switch to the OFF/RESET position. Connect the TIPSS-EST service tool and check that engine

        overspeed protection is enabled before beginning the tuning process. Engine overspeed is configured on the

        "Service\Monitoring System" screen on TIPSS-EST.

        Warning! Performing engine governor tuning without engine overspeed protection could result in serious

        engine damage. Ensure that this parameter is ON while performing this procedure.

        2  Start the engine. Observe, on the engine mounted genset control panel, that the engine has reached rated

        speed. This panel will serve as the speed reference point during this procedure.

        3  Enter the "Configuration Parameters" screen on TIPSS-EST.

        4  Determine the desired scenario to tune the engine. For example, is the engine having poor response during

        specific load assignments or specific load dumps ?

        5  Perform the desired load change from step 4. Observe the response of the engine by viewing the engine

        speed on the genset mounted control panel, by looking at the system bus frequency response to the load

        change, or by listening to the response of the engine.

        6  Use the suggestions listed above to determine which gains should be adjusted.

        Note: Usually, the governor gain factor should be somewhat lower that the governor minimum stability factor

        for optimum performance. The maximum stability factor is typically a smaller value than the minimum stability

        gain and governor gain factor.

        7  Repeat steps 5,6, and 7 until a desired engine response can be met. Use large adjustments (10% of original

        gain) at first to generally tune the engine in the proper manner. As the response is closer to desired, increase

        the gains in smaller increments (1% of total gain).

        Customer password 1, customer password 2

        These are the customer password programmable parameters that can be used to protect certain configuration

        parameters from unauthorised changes.

        34

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        2300 Series

        4

        Fault diagnosis

        4

        Introduction

        This chapter has information that will assist with the diagnosis of mechanical and electronic faults on the

        engine, and its management system.

        The diagnostic process

        Some engine symptoms are caused by conditions or components other than the electronic control system,

        such as poor fuel quality or incorrectly adjusted valves.

        The basic philosophy of diagnosing this engine is to follow the three steps listed below FIRST to diagnose a

        malfunctioning engine:

        1  Gather operator information. Check that the fault is not due to normal engine operation.

        2  Perform a visual inspection of the engine. Check fuel and oil level, supply and/or condition. Check for visible

        wiring and connector problems or damaged components.

        3  Check and repair all ACTIVE/LOGGED diagnostic codes using the diagnostic procedures given in

        "Diagnostic procedures with a diagnostic fault code" on page 76.

        If ALL three of these inspections reveal no problems, identify probable causes using the procedure or

        procedures in this chapter that best describes the symptoms. Narrow the probable causes given in the

        procedure by considering operator information, operating conditions, and repair history of the engine.

        Operator information

        What happened, and when ?

        Under what conditions ?

        Was the engine rev/min (speed) high or low ?

        Was the engine under load ?

        Are there any customer or dealer installed systems that could cause this symptom ?

        What else occurred ?

        When did the symptoms begin (and what else happened at that time) ?

        Logged diagnostic codes

        Do they correlate to probable causes ?

        Did they occur at the same time as the symptoms ?

        Are some codes logged repeatedly ?

        Other symptoms

        Are they related to this symptom ?

        Do they have common probable causes ?

        Finally, test each probable cause using the tests suggested by the procedure

        Be sure to check connectors, especially on intermittent problems. Refer to Test 39: Inspecting electrical

        connectors on page 82 for details.

        Diagnostic Manual, TSD 3457E, Issue 2

        35

        This document is printed from SPI². Not for RESALE


         

        4

        2300 Series

        Diagnostic procedures without a diagnostic fault code

        General information

        This section is to be used for diagnosing problems that have symptoms but do not have ACTIVE diagnostic

        codes.

        Before using this section, be sure that you have gathered information about the fault to adequately describe

        the symptoms, verified that the fault is not due to normal engine operation and repaired all ACTIVE diagnostic

        codes. Refer to "Diagnostic procedures with a diagnostic fault code" on page 76.

        36

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        4

        2300 Series

        Diagnostic symptoms

        Engine will not crank

        Test 1

        Note: This is NOT an electronic system problem, the engine starter motor wiring is not supplied by Perkins.

        Refer to the Workshop Manual and OEM Manual for additional information on the following tests.

        Probable root causes

        Battery cables/batteries

        Emergency stop switch

        Starter motor solenoid or circuit problem (in system wiring)

        Starter motor/flywheel ring gear

        Engine accessory

        Hydraulic cylinder lock

        Internal engine problem

        Perform the following tests

        1  Check battery post and battery cables for loose connections and corrosion. If corroded, remove and clean

        cables and connections. Check the optional battery disconnect switch.

        2  Check that the optional emergency stop switch is not engaged. Load test batteries. If necessary, charge the

        batteries.

        3  Test starter motor solenoid operation. Check the system wiring to starter motor solenoid.

        4  Test starter motor operation. Inspect starter motor pinion and ring gear for damage.

        5  Check that the timing pin was not left in the flywheel housing after setting valve clearances. Use the engine

        turning tool and attempt to manually turn the engine. If unable to turn the engine, remove and inspect engine

        accessories that can lock up the engine. Repair or renew as necessary.

        6  Remove injectors and check for fluid in the cylinders.

        7  Disassemble engine to inspect for internal components that may be seized, broken, bent, out of alignment,

        etc. Refer to the Workshop Manual.

        Diagnostic Manual, TSD 3457E, Issue 2

        37

        This document is printed from SPI². Not for RESALE


         

        4

        2300 Series

        Engine cranks but will not start

        Test 2

        Probable root causes

        Starting aids/fuel waxing (cold temperature operation)

        Electrical connectors and wiring

        ECM software or ECM

        Engine speed/timing signal

        Electrical connections to the unit injector solenoids

        Fuel supply

        Restriction of the air supply or exhaust

        Combustion problem

        Perform the following tests

        1  If cold ambient conditions exist, check operation of starting aids. Check the coolant immersion heater for

        malfunction and replace if required. Check for presence of congealed fuel (wax). Repair as required.

        2  Check that the keyswitch and Injection Disable switches are closed.

        3  Check for correct installation of the ECM connectors J1/P1 and J2/P2, engine speed/timing sensor

        connectors J401/P401 and J402/P402, and unit injector connectors J300/P300. Check that the ECM is

        receiving the correct voltage.

        Note: Aftermarket engine protection devices may interrupt power to the ECM and prevent communications

        with the TIPSS-EST service tool. Check for correct installation and operation of aftermarket engine protection

        devices. Aftermarket devices may need to be bypassed to continue.

        4  If the engine has an unprogrammed ECM it will crank but will not start. Access ECM Status in the WinFlash

        PC program and follow the request to program the software. Refer to "Programming an ECM using flash

        programming" on page 27. Failure to program the software will cause the engine to not start or communicate.

        Cycling the key switch will allow access to the WinFlash PC program.

        5  Check that none of the diagnostic lamps are illuminated. If any are, turn the key switch OFF and ON to try

        and clear the fault. If the diagnostic lamps cannot be cleared refer to "Diagnostic procedures with a diagnostic

        fault code" on page 76. Check that the speed/timing sensors are correctly installed and that no diagnostic

        codes are active.

        6  Check that there is not an active 268-02 Check Programmable Parameters diagnostic code. If the diagnostic

        code is present, refer to "Programming an ECM using flash programming" on page 27.

        7  Observe the engine speed on the TIPSS-EST "Status" screen while cranking the engine. If the electronic

        service tool displays 0 rev/min while cranking the engine, there is a problem in the engine speed/timing sensor

        circuit. Refer to Test 46: Engine speed/timing circuit test on page 126.

        If the engine speed is greater than 50 rev/min the engine speed/timing circuitry appears to be operating

        correctly. Check that the timing reference gear is installed correctly and keyed to the camshaft by means of

        the locating dowel. If the gear was installed backwards or flipped over during assembly, the engine will not

        start.

        8  Check the calibration of the timing sensor and recalibrate if required. Refer to Test 47: Engine speed/timing

        calibration on page 134. Check for correct orientation between crankshaft and camshaft drive gears, repair as

        required.

        9  Ensure the unit injector connectors are correctly installed. Refer to Test 48: Injector solenoids circuit test on

        page 138 and perform the Injector Solenoid test as a quick check to confirm that the ECM can energize the

        unit injector solenoids. Ensure that the injection disable switch (if fitted) is ON.

        10  Check for a fuel supply problem and check fuel pressure. Refer to Test 29: Engine has a fuel supply

        problem on page 65.

        11  Check for combustion problems.

        38

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        4

        2300 Series

        Engine misfires, runs rough or is unstable

        Test 3

        Note: If the problem is intermittent and cannot be recreated, refer to Test 6: Intermittent low power or power

        cut-outs on page 42. If the problem is consistent and can be recreated, continue with this procedure.

        Probable root causes

        Cold mode operation (normal operation, if the problem occurs only after start-up)

        Battery cables, battery

        Electrical connections to the ECM

        Loss of backup engine speed/timing sensor

        Throttle position signal

        Faulty electronic unit injector circuit (individual cylinder malfunction)

        Fuel supply

        Air inlet or exhaust restrictions or air system leaks

        Internal engine problem

        Note: If the problem only occurs under certain conditions (high engine speed, full load or engine operating

        temperature, etc), then perform the test under those operating conditions.

        Perform the following tests

        1  Check indicator lamps; refer to Test 39: Inspecting electrical connectors on page 82.

        2  Check for a fuel supply problem and check fuel pressure.

        3  Check air inlet and exhaust systems for restrictions and leaks. Look for a diagnostic lamp indication, or

        tripped restriction indicators (if fitted) associated with plugged air filters. Replace plugged air filters, or clean

        filters, as described in the User’s Handbook, and repair any leaks found. Also refer to Test 41: Analogue

        sensor open or short circuit test on page 91. Refer to the Workshop Manual if an internal engine problem is

        suspected.

        4  Monitor the TIPSS-EST "Status" screen to check that the engine has exited cold mode and observe the

        coolant temperature reading on the electronic service tool. The engine should exit cold mode operation

        whenever the coolant temperature is above 17 °C (64 °F) and the engine has been running for five minutes.

        5  Check battery post and battery cables for loose connections and corrosion. If corroded, remove and clean

        cables and connections.

        6  Check the ECM connectors J1/P1 and J2/P2, customer connector, engine speed/timing sensor connectors,

        unit injector connectors and associated wiring for damage, abrasion or incorrect attachment. Refer to Test 39:

        Inspecting electrical connectors on page 82.

        7  Check the battery connection at the customer connector and ECM connector. Perform a pull test on the

        customer connector. Perform a pull test on P1 pins 48, 52, 53, 61, 63, 65 and 70. The wires should remain in

        the connectors during pull test. Refer to Test 39: Inspecting electrical connectors on page 82.

        8  Check that a 190-11 Loss of Engine Speed Signal diagnostic code is not active. If the 190-11 code is active

        check to see if a 342-11 Loss of Backup Engine Speed Sensor diagnostic code has been recently logged. If

        the electronic service tool indicates that a 342-11 code has been recently logged perform a pull test on the

        wires to the backup engine speed/timing sensor. Refer to Test 39: Inspecting electrical connectors on page

        82. If a 342-11 code has not been recently logged and the 190-11 code is active refer to Test 46: Engine

        speed/timing circuit test on page 126.

        9  Connect an electronic service tool to the service tool connector. Turn the key switch to the ON position,

        engine OFF. If a PWM speed control is fitted, check that a 91-08 Invalid PWM Speed Control Signal diagnostic

        code has not been recently logged. Monitor the throttle position from low idle to full throttle.

        10  Check for active or recently logged injector solenoid diagnostic codes. Use an electronic service tool and

        cut out each cylinder at low idle to isolate the misfiring cylinder(s). Refer to Test 48: Injector solenoids circuit

        test on page 138.

        Diagnostic Manual, TSD 3457E, Issue 2

        39

        This document is printed from SPI². Not for RESALE


         

        4

        2300 Series

        Low power/poor or no response to throttle

        Test 4

        Probable root causes

        Customer specified parameters

        Cold mode operation (normal operation if the problem occurs only after start-up in cold weather)

        Engine is in a derated mode

        Electrical connections to the ECM

        External speed control

        Faulty electronic unit injector (individual cylinder malfunction)

        Fuel supply

        Intake manifold sensor signal

        Air inlet or exhaust system restrictions or leaks

        Incorrect adjustment of full load setting or full torque setting

        Note: If the problem only occurs under certain conditions (high engine speed, full load or engine operating

        temperature, etc), then perform the test under those operating conditions.

        Perform the following tests

        1  Check for a fuel supply problem and check fuel pressure. Refer to Test 29: Engine has a fuel supply problem

        on page 65.

        2  Check air inlet and exhaust systems for restrictions and leaks. Look for a diagnostic lamp indication, or

        tripped restriction indicators (if fitted) associated with plugged air filters. Replace plugged air filters, or clean

        filters, as described in the User’s Handbook, and repair any leaks found.

        3  Check that the fault is not normal (programmed parameter) operation. Connect an electronic service tool

        and check the system/customer parameters. If a 268-02 Check Customer Or System Parameters diagnostic

        code is active, ensure ALL the system and customer parameters are programmed. Check that the injector

        codes are programmed. Check that the correct rating is programmed.

        4  Monitor the electronic service tool "Status" screen to check that the engine has exited cold mode. Observe

        the coolant temperature reading on the electronic service tool. The engine should exit cold mode operation

        whenever the coolant temperature is above 17 °C (64 °F) and the engine has been running for five minutes.

        5  The engine may be derated due to altitude or other factors. Connect an electronic service tool and check for

        active engine derates or diagnostic codes.

        6  Check the ECM connectors J1/P1 and J2/P2, customer connector and the relevant speed setting inputs and

        associated wiring for damage, abrasion or incorrect attachment. Refer to Test 39: Inspecting electrical

        connectors on page 82.

        7  If a PWM speed control is fitted, connect an electronic service tool to the service tool connector. Turn the

        key switch to the ON position, engine OFF. Check that a 91-08 Invalid PWM Speed Control Signal diagnostic

        code has not been recently logged. Monitor the PWM input. The duty cycle should be between 5 and 10

        percent at low load and increase at full load. If the throttle position change is erratic or out of range the problem

        is with the external speed control.

        8  Check that a 262-03 +5 V Supply Above Normal or a 262-04 +5 V Supply Below Normal diagnostic code is

        not present. If either of the codes are active refer to Test 41: Analogue sensor open or short circuit test on

        page 91.

        40

        Diagnostic Manual, TSD 3457E, Issue 2

        This document is printed from SPI². Not for RESALE


         

        4

        2300 Series

        Intermittent engine shutdowns

        Test 5

        Note: Use this procedure only if the engine has shut down completely and has had to be restarted.

        Probable root causes

        Customer specified parameters

        Electrical connections to the ECM

        Faulty electronic unit injector connector

        Engine fault

        The ECM detects an engine fault, e.g. low oil pressure, etc. These fault codes may be viewed on the display

        modules or an electronic service tool. They are logged in memory except as noted.

        Note: If the problem only occurs under certain conditions (high engine speed, full load or engine operating

        temperature, etc), then perform the test under those operating conditions.

        Perform the following tests

        1  The engine may be shut down due to low pressure levels, or other factors. Connect an electronic service

        tool and check for active engine derates or diagnostic codes.

        2  Check the ECM connectors J1/P1 and J2/P2, customer connector, engine speed/timing sensor connectors

        and the unit injector connectors and associated wiring for damage, abrasion, corrosion or incorrect attachment.

        Refer to Test 39: Inspecting electrical connectors on page 82 for additional information.

        3  Check the electronic service tool for a logged 168-02 Intermittent Battery Power to the ECM diagnostic code.

        Check the battery connection at the customer connector and the ECM connector. Refer to the electrical

        schematic. Perform a pull test on the customer connector. Perform a pull test on P1 pins 48, 52, 53, 61, 63, 65

        and 70. The wires should remain in the connectors during the pull test. Refer to Test 39: Inspecting electrical

        connectors on page 82.

        4  If the problem occurs only after the engine is warmed up and disappears after the engine has been allowed

        to cool, the circuit breakers may be exceeding the trip point because of overheating. Check the circuit breakers

        on the engine, reset if required.

        Note: Aftermarket engine protection devices may interrupt power to the ECM. Check for correct installation

        and operation of aftermarket engine protection devices. Aftermarket devices may need to be bypassed to

        continue testing.

        5  Check switch status on an electronic service tool. If the switch status is incorrect, refer to "Machine wiring

        diagram (all options)" on page 18.

        6  Check for a fuel supply problem and check fuel pressure. Refer to Test 29: Engine has a fuel supply problem

        on page 65.


         

        免費熱線
        400-100-8969???15088860848
        機組銷售
        0574-26871589? 15267810868
        配件銷售
        0574-26886646? 15706865167
        維修熱線
        0574-26871569  18658287286
        手機端
        微信公眾號
        在線客服
        97资源免费观看视频在线观看,97婷婷大香蕉,男女激情内射免费观看,成 人3D动漫在线观看网站
        亚洲午夜禁在线观看 少妇高潮动图 久久av中文1区 国产精品香蕉伊人 大色妞在线视频 免费人成网站视频在线观看不卡 亚洲亚洲精品av在线小说 黄色视频毛片a级 国产高清欧美情侣视频 亚洲成人av高清在线观看 日本熟妇色VIDEOS 久久精品网色 亚洲午夜少妇av毛片: WWXXXXX日本高潮 三级日韩电影一区二区 国产午夜免费观看视频 日木强大喷奶水AV片 中文字幕人妻少妇在线视频 国产麻豆剧果冻传媒观看 国产性猛交乱大交 久久精品亚洲激情 免费人成网站视频在线观看不卡 2019亚洲欧美日韩在线 精品国偷自产在线不卡视频免费 国产精品免费在线观 经典人妻视频 有码中文字幕在线 粉嫩高清一区二区三区精品视频 日韩中文字幕在线一区 国产亚洲一区二区三区精品 色哟哟国产精品观看 精品久久久影院 日本熟妇色VIDEOS 久久精品合集欧美 免费人成网站在线观看不 成人av在线播放一区 人妻中文字幕 尤物AV无码色AV无码 熟女人妻精品一区二区三区 gay男男啪啪中国国产chinese男男gaygay 亚洲欧洲日产精品 亚洲熟女在线精品一区 女人被爽到呻吟的视频 色欲色天香综合免费AV 亚洲成人动作片在线观看 国产精品湖精呻吟av久久 国产黄色的视频免费看 黄片免费在线播 91av在线看 欧美va日韩va亚洲va 五月天婷五月天综合网 女人张开腿让男桶喷水高潮 国产白丝JK学生在线播放 一本色道久久高清精品网站 日本欧美国产区一区 日本免费网站2021年能用的 午夜精品理论片久久久 男女乱婬真视频全过程播放 秋霞AV在线露丝片AV无码 粉嫩极品国产在在线播 亚洲成人网av 一级a爱做片免费观看国产 日本欧美在线视频观看97 天堂在线资源中文6 亚洲av成人精品国产 亚洲日本不卡 少妇熟女精品 日本欧美在线视频观看97 欧美日韩视频一区在线看 天堂久久亚洲精品 中文字幕有码三级在线 一区二区在线精品观看 在线观看亚洲无人码 女女高潮喷水视频 - BD韩语手机在线看 欧美熟妇多毛又多水免费观看 波多野结衣作品一区二在线观看 人妻边接电话边出轨 亚洲a在线视频免费观看 亚洲天堂最新国产 好大 好深 我高潮了 亚洲成人网av 多人伦精品一区二区三区视频 亚洲欧洲精品中文字幕不卡 欧美风情亚洲精品 国产亚洲高清一区二区三区 农民工简易窝棚嫖妓精彩对白 亚洲av综合色一区二区 国产另类熟女 成人区人妻精品一区二区18 人妻久久精品天天中文字幕 国产无套视频在线观看aa在线 久久午夜鲁丝片精品 国产亚洲精品欧洲在线 哈尔滨60岁丰满老熟女 在线A片永久免费看无码不卡 日本边摸边吃奶边做gif视频 国产欧美日韩黄片 国产无套视频在线观看aa在线 久久91中文字幕 2021在线精品自偷自拍无码 日本网址在线 岛国v免费观看视频 日韩精品国产高清在线观看 久久99九九99九九精品 狠狠色婷婷丁香五月 国产精品嫩草影院123 老妇女BBwββwBBWBB 青青草午夜影院 高清亚洲va 波多野结衣作品一区二在线观看 日韩免费1区二区电影 亚洲精品美女中文在线 成年女人观看永久免费视频 久久亚洲专区午夜福利 国产老妇伦国产熟女老妇高清 秋霞在线观看日韩av 在线成H人视频免费 日本黄色视频网站啊啊啊 av在线影片 久操精品在线视频 九九视频精品免费在线观看 国产高跟丝袜麻酥酥在线 2020最新天堂福利视频 亚欧洲精品在线视频免费观看 欧美丰满巨肥大屁股BBW 欧美人妻AⅤ中文字幕 女生黄18禁无遮挡免费 国产成人一区二区三区,欧美日韩国产 欧美风情亚洲精品 国产精品入口在线免费观看 一本色道久久 国产丝袜女王foot脚交 欧美日韩亚洲国产一区 日韩精品 国产精品 欧美精品 AV老司机午夜福利片免费观看 亚洲精品国产有码 午夜麻豆福利片 波多AV无码人妻水多760 中文字幕有码三级在线 国产极品女主播国产区 国产波多野结衣一区二区 成年人的黄色视频永久免费 国产欧美日韩黄片 精品熟女一区 亚洲成人av高清在线观看 亚洲中文无码H在线观看 无码AⅤ免费中文字幕久久 99久久精品久久免费观看不卡素人 免费观看av不卡网站 一女三男做2爱A片 久久精品爽人妻 亚洲欧美日韩乱码人妻精品 波多野结衣乱码中文字幕 国产成人久久综合一区 精品国偷自产在线不卡视频免费 轻轻草免费在线视频 亚洲精品国产a久久久 亚洲中文字幕乱码在线视频 亚洲中文字幕精品久久 av免费在线观看全网站 免费黄片一级视频 亚洲欧美日韩久久精品狠狠 特级婬片女子高清视频 金梅瓶1一5集手机在线观看 最新国产视频一区二区三区 免费看一级av毛片 久久8精品亚洲 久久九九久精品国产日韩经典 欧美日韩精品一区二区中文字幕 自拍偷区色综合 中文字幕乱码亚洲∧v加勒比 美女隐私尿口视频网站 日韩av毛片网站 新亚洲一区在线观看 91av在线电影 91香蕉人妻久久精品99 中国男男自慰GAY片免费观看 久久精品国产精 农民工简易窝棚嫖妓精彩对白 精品人人做人人爽久久久1 男人女人特黄视频 美女被别人操高潮的视频免费 白丝粉嫩小仙女自慰网站 黄频视频美女在线 99久久精品国产超碰 操的高潮喷水在线播放 99久久精品国产99 99久久精品久久免费观看不卡素人 久久久久久久国产精品成人热 男人的天堂在线无码观看视频 日本AAAAA级特黄大片 欧美日本在线视频免费 在线看片人成视频免费无遮挡 高清撒尿HDTUBE 公交车被CAO得合不拢腿 忘忧草在线观看免费 中国av所有黄片播放 国产另类熟女 在线观看永久国产 国产精品久久福利网站 人妻卧室迎合领导进入 看黑人巨大精品欧美一区二 熟女人妻の波多野结衣av在线 青青草原精品在线观看 亚洲天堂精品人妻 国产一级内射老妇 久久精品亚洲乱码 少妇人妻在线一卡 美女隐私尿口视频网站 久久精品国产专区 久久大香伊蕉在人线国产H 欧美亚洲国产大片 黄色大片在线播看 国产精品亚洲片在线观看不卡 久久久久久久午夜视频 日木强大喷奶水AV片 国产成人精品日本亚洲77美色 免费操人妻一区二区 国产欧美日韩高清不卡 eee在线播放免费人成视频 国产成人一区二区国产 午夜黄色视频在线观看免费不卡 加山夏子中文在线播放 大香蕉久久一区二区三区 五十熟女人妻视频一区二区 国产精品亚洲一区二区在线 婷婷色亚洲av 日本一二三区免费 亚洲经典三级av 少妇富婆高级按摩出水高潮 日本高清乱理伦片中文字幕 免费看一级av毛片 高清撒尿HDTUBE 影音先锋新男人AV资源站 a天堂官网在线看 国产熟女高清 欧美日韩一区二区在线观看国产 后入国产在线观看 99久久婷婷国产综合精品电影 亚洲国产精品国自产拍AV麻豆 91婷婷色香五月综合 女性高爱潮有声视频A片 人妻三级日本香港三级极97 在线免费播放av毛片 亚洲综合精品自拍粉嫩av 在线观看永久国产 亚洲图片自偷自拍 久久99国产成人亚洲精品jk 国产亚洲精品欧洲在线 麻豆网站av 麻豆av综合网 www.54cc亚洲 少妇高潮动图 黄色毛片免费孕妇 91av在线电影 日韩亚洲欧美乱码 中文字幕91在线视频 18美女洗澡光胸光屁屁无遮挡 色一区在线观看 女人性高朝床叫视频尖叫声 JAPANESE成熟丰满熟妇 国产成人av在线不卡1 制服丝袜av最新看片 国产激情av女片自拍 天天碰日日干夜夜操 久久亚洲这里都是精品 国产成人精品免费视频大全 熟女av在线免费观看 波多野精品一区二区三区色情 人妻久久精品天天中文字幕 办公室做好硬好紧我要视频 我被五人伦好爽 日韩人妻熟女一区二区三区 国语av对白免费在线观看 男人天堂大片 国产免费人成视频尤勿视频 最近中文视频字幕大全 内射白嫩的小少妇33p 丁香六月男人天堂 无遮挡啪啪摇乳动态图 中文字幕人妻电影在线 九七人妻碰碰视频 国产精品嫩草影院123 一二三四免费观看在线视频中文 亚洲欧美人成网站在线观看看 免费看一级av毛片 国产精品免费观看av 在线欧美日韩免费观看 国产色窝在线 国产成人99在线观看 国产裸体歌舞一区二区 扒开双腿疯狂插入爽爽爽视频 在线免费看片人成视频 五月天婷五月天综合网 三级a黄色毛片 亚洲精品在线观看中文字幕 国产人伦真实精品视频 经典人妻视频 78m成人免费视频国产av 久久久久久久久国产一区 国产成人剧情av麻豆映画1 国语av对白免费在线观看 亚洲av成人中心 乌克兰少妇性疯狂 在线观看av天堂 国产白丝JK学生在线播放 一本色道久久综合狠狠躁中文 中文字幕日韩高清一区 亚洲欧美有码无 老湿机69福利区无码 国产午夜电影一区二区 东方在线一级毛片 亚洲欧美人成影视在线 自拍偷区色综合 欧美激情A∨在线视频播放 13萝自慰喷白浆 亚洲婷婷成人网 国产成人精品电影在线观看91 日日干夜夜超碰 自拍偷区色综合 日韩一区二区三区免费看片 国产热A欧美热A在线视频 色伊人亚洲乱码 交换配乱吟粗大农村大坑性事 国产在线欧美一区二区三区 色哟哟在线永久网站 一二三四免费观看在线视频中文 精品国产三级a在线观看网站 精品国偷自产在线不卡视频免费 AV第一福利在线导航 99久久精品国产一区色 后入国产在线观看 真实国产乱子伦沙发睡午觉 亚洲成人av在线播放网站 国语av对白免费在线观看 AV无码久久久久不卡网站 国产成人精品电影在线观看91 亚洲国产嫩草影院在线观看 公交车上人妻被涂春药 7777精品久久久久久 日韩欧美成人免费 操的高潮喷水在线播放 久久久人妻91久久久 成人纯h小说网站 永久黄网站色视频免费品善网 可以在线看的不卡av网站 啪啪人妻一区视频 无码AⅤ免费中文字幕久久 国产乱码精品一区二区三区粉嫩 午夜男女大片免费观看18禁片 桃花在线观看免费观看手机 成年人的黄色视频永久免费 中文一区二区字幕欧美 日本高清性视频 CHINESE乱子伦XXXX 污18禁图无遮挡开腿 欧美va日韩va亚洲va 欧美VIDEOS粗暴高清 新亚洲一区在线观看 国产精品区久久久 大色妞在线视频 国产女人喷水视频在线观看 人妻激情偷乱视频一 一本色道久久综合狠狠躁中文 免费人成网站视频在线观看不卡 亚洲一区av电影免费 十八禁无遮挡国产网站 13萝自慰喷白浆 久久九九久精品国产日韩经典 精品福利片在线观看亚洲av 午夜情深深 怡红院国产亚洲 蜜臀av国产尤物一区 公交车上人妻被涂春药 人禽杂交18禁网站 成年女人免费影院 一万部小泑女视频...导航网站 男女激情内射免费观看 国产精品嫩草影院123 污18禁图无遮挡开腿 国产精品嫩草影院123 欧美日韩一区不卡 扒开老女人毛茸茸的黑森林 欧美激情亚洲在线 精品国产福利网站 国产av黄麻豆 在线五a级毛片 办公室做好硬好紧我要视频 免费国产伦精品一区二区三区 精品国产福利网站 2019亚洲欧美日韩在线 12周岁女全身裸啪啪自慰网站 国产色在线一区 少妇被黑人整得嗷嗷叫 2021在线精品自偷自拍无码 亚洲熟女电影一区二区三区 男女免费视频网站www 99久久精品久久免费观看不卡素人 日韩欧美视频午夜一区二区 六十熟妇乱子伦视频 国产在线观看男天堂 日韩在线观看中文字幕视频 欧美精品国产成人 亚洲欧洲精品中文字幕不卡 国产精品99精品一区二区三 av免费在线观看网址网站 久久久久久 国产精品 亚洲va欧美va人人爽久 两根粗大一前一后好深 - BD韩语手机在线看 免费一级爱片视频在线 日韩高清不卡av在线 亚洲av222 无码AⅤ免费中文字幕久久 91免费嫩草电影 日韩综合高清 日韩精品 国产精品 欧美精品 最新69国产成人精品3p人妻 国产成人精品电影在线观看91 在线免费播放av毛片 japanese国产真实乱 日本高清色视频网址 亚洲精品国产av成拍色拍 免费在线看黄色的网站 欧美丰满巨肥大屁股BBW 久久精品亚洲激情 久久精品合集欧美 强壮公弄得我次次高潮 欧美日韩不卡视频在线 好男人看视频免费2019 色99国产精品 亚洲欧美日韩久久精品狠狠 欧美色倩网站大全免费 亚洲高清国产拍精品闺蜜合租 好紧真爽喷水高潮视频办公室 欧美激情videoshd另类 日韩毛片成人 亚洲欧美日韩在线不卡 亚洲欧美熟女一区二区 黄色91影院 成年裸男自慰GV网站 免费观看全部的毛片 国产日韩久久久久老熟女 99久久国产综合免费精品 欧美日韩一区不卡 被拉到野外强要好爽流水 亚洲少妇熟女 色欲香天天天综合网站无码 极品粉嫩学生国产在线 午夜不卡的av 国产精品VA在线观看丝瓜影院 国产精品欧美日韩电影 久久久久国产刺激毛片 久久乱69小说 亚洲图片自偷自拍 精品国产一区二区在线 午夜欧美精品久久久久久久久 精品一区二区不卡视频 男女下面最刺激的视频网站 亚洲66av 91av麻豆视频 久久午夜夜伦鲁鲁片免费无码 亚洲精品在线观看中文字幕 小14萝裸体洗澡视频免费网站 天天日夜夜操天天干 国产精品40熟女一区二区 日本免费电影一区二区 男女真人后进式猛烈动态图无打吗 久久九九久精品国产日韩经典 上了漂亮少妇视频在线观看 japanese国产真实乱 CHINESE多姿势VIDEO 免费一级做a爰片性色毛片 加山夏子中文在线播放 黄 色 网 站 成 人在线 最近中文字幕视频大全4 2020无码专区人妻系列日韩 上司部长出轨漂亮人妻 国产成人福利精品在线 av高潮喷水在线 a级毛片免费进 午夜男女大片免费观看18禁片 公交车被CAO得合不拢腿 多人伦精品一区二区三区视频 久久精品国产乱子伦免费 欧美精品国产成人 国产三级α中文精品在线观看 国产黄色的视频免费看 三级a黄色毛片 在线看免费的黄色大片 97婷婷大香蕉 亚洲国产日韩综合久久 av在线免费观看国产精品 欧美日韩一卡2卡三卡4卡新区 女人性高朝床叫视频尖叫声 97久久超碰国产精品 激情偷乱人伦小说免费观看 欧美日本在线视频播放 久久成人一区二区精品 99久久精品国产超碰 三级国产毛片 在线免费观看日韩欧美 久久激情亚洲中文字幕 国产色窝在线 国产在线观看男天堂 美女脱内衣禁止18以下尤物 日本av在线观 久久国产乱子伦精品免费女 交换娇妻性中文字幕 一级a爰片性视频特黄 97国产精品久久久久久超粗 99re视频在线观看免费 三级免费毛片大放送 亚洲熟女在线精品一区 国产日产成人精品一区二区三区 日韩一区二区三区免费看片 7777久久亚洲中文字幕密桃 欧美91激情亚洲 国产AV无码专区亚洲AV麻豆 亚洲国产欧美日韩精品一区 狠狠色综合网丁香五月 免费日韩av网在线观看 熟女人妻の波多野结衣av在线 ZOZOZO女人与牛交全过程 真实国产乱子伦沙发睡午觉 亚洲精品成人va 激情五月亚洲综合图区 日韩av高清免费在线观看 日本的黄色视频网站免费 精品久久久影院 国产精品久久一卡二卡 亚洲天堂成人精品久久 2020国产精品久久久久精品 亚洲性无码AV在线DVD 欧美一区二区三黑人 欧美人妻AⅤ中文字幕 7777久久亚洲中文字幕密桃 2020国产精品久久久久精品 国产成人+综合+亚洲欧美 岛国av免费电影在线播放 日韩幕无线码一区中文 亚洲欧美在线看看 A毛片免费全部播放无码 在线看免费的黄色大片 国产乱码精品一区二区三区粉嫩 亚洲欧美中文日韩二区 国产不卡一卡二卡 免费观看深夜女人嗷嗷叫av 中文字幕天堂av 伊人99热热 98精品国产亚洲a av有码在线天堂 忘忧草在线观看免费 9热99这里只有精品 久久亚洲这里都是精品 国产激情对白视频在线观看 无码小电影在线观看网站免费 国产视频精品中文字幕 成人免费A级毛片无码网站 最新中文字幕永久视频播放 7777久久亚洲中文字幕密桃 97国产精品久久久久久超粗 亚洲最大成网人站亚洲ADC 欧美日韩精品一区二区中文字幕 91久久精品人妻中文字幕 亚洲欧美国产专区一区国产亚洲视频 91精品国产综合久久香蕉网 亚洲国产嫩草影院在线观看 99久久精品久久免费观看不卡素人 AV老司机午夜福利片免费观看 日韩精品国产高清在线观看 可在线免费观看av网站 综合国产视频一区二区三区 亚洲成a人片8888一在线观看 成人av一区二区在线 免费a级毛片10禁网站免费 在线免费观看日韩欧美 国产伦一区二区三区视频涩爱 国产做a爰片久久毛片al JAPANESE成熟丰满熟妇 99久久国产综合免费精品 成人色网站在线 蜜桃中文字幕69 美女隐私尿口视频网站 色午夜日本高端视频 18禁黄色日本网站 久久激情亚洲中文字幕 女人被日高潮视频 国产精品嘿咻av av日韩在线不卡 一个人免费视频在线观看 2020女厕偷拍25名美女 一区二区三区亚洲在线观看 成人免费在线播放av 俄罗斯 ххх 一级a级片毛片 亚洲一区二区三区在线播放_ 18禁网站在线无毒免费观看 eee在线播放免费人成视频 三级日韩电影一区二区 粗大的捧猛烈进出高潮视频 国产一级做a爱片久久 波多野精品一区二区三区色情 少妇下面好紧好多水真爽播放 亚洲国产另类欧美 凹凸精品熟女 亚洲精品国产a久久久 亚洲欧美人成影视在线 日韩免费码中文在线观看 亚洲中文字幕岛国av 亚洲中文无码H在线观看 人妻激情偷乱视频一 国产女人喷水视频在线观看 欧美日韩不卡视频在线 国产性猛交乱大交 亚洲av2019 免费人成网站视频在线观看不卡 久久久久国产刺激毛片 熟女人妻の波多野结衣av在线 欧美电影国产精品久久 亚洲一区av电影免费 色一区在线观看 日本熟妇人妻系列专区 亚洲欧美人成网站在线观看看 日本高清乱理伦片中文字幕 中国人与黑人牲交FREE欧美 亚洲国产精品天堂一区二区三区 国产成人欧美精品在线播放 男女下面最刺激的视频网站 大香蕉视频国产在线 丰满人妻av一区二区三区 午夜欧美精品久久久久久久久 国产国内久久精彩国语对白视频 高清乱码一卡二卡 亚洲精品国产一区二三区 五十熟女人妻视频一区二区 18禁成人国产又黄又爽 久久九九久精品国产日韩经典 黄频视频美女在线 人妻3p精品视频 蜜桃中文字幕69 色噜噜狠狠一区二区三区四区偷拍 波多野结衣毛片在线看 欧美精品成人区一区二区三 久久av中文1区 女女高潮喷水视频 国产午夜精品理论片免费观看 少妇又粗又爽又猛又黄 av免费一级毛片 欧美风情亚洲精品 色呦呦网站在线观看 无码少妇一区二区浪潮av 美国十次导航 国产一区二区在线影院 高级会所人妻互换 日韩幕无线码一区中文 国产啪精品视频网站免费观看 女人被日高潮视频 女人操男人在线观看 无码一卡二卡三卡四卡视频版 激情aⅴ欧美一区二区三区 国产3p一区二区三区视频 亚洲熟妇丰满大 av无码av在线a∨天堂 JAPANESE成熟丰满熟妇 国产精品久久亚洲一乱 久久精品中文字幕av一区 国产精品40熟女一区二区 国产久久精品久久 老司机午夜福利视频在线 别揉我奶头嗯啊~啊视频网站 国产精品一线视频 色午夜日本高端视频 2020最新天堂福利视频 欧美电影国产精品久久 久久国产精品一二 成年人午夜网站在线观看 小少妇在线观看 亚洲精品乱码国产精品乱码 天天碰日日干夜夜操 亚洲中文高清字幕在线播放 午夜不卡的av 色呦呦网站在线观看 上司部长出轨漂亮人妻 亚洲国产日韩综合久久 亚洲专区精品在线 国产成人一区二区国产 亚洲精品一区国产二区三区四区 国产亚洲一区二区三区精品 亚洲成人a级电影 久久激情亚洲中文字幕 久久精品中文字幕av一区 国产亚洲成av人片在一线观看 色欲色天香综合免费AV 成a人片国产精品 2021在线精品自偷自拍无码 亚洲午夜福利在线播放网址 国产日韩av高清在线不卡 国产激情av女片自拍 成年女人黄小视频 国产高清欧美情侣视频 亚洲精品国产av成拍色拍 国产成人精品免费视频大全 人妻激情乱视频一区二区三区 在线看国产精品三级在线 国产高清真实破学生处 久久久精品成人网 CHINESE乱子伦XXXX 波多野结衣一区二区三区高清 免费边摸边吃奶叫床视频 高潮喷水av在线 亚洲嫩草影院 亚洲欧洲日产精品 91香蕉亚洲精品国产 亚洲经典三级av 国产成人精品一区91 凹凸国产精品熟女视频 我要看黄色三级毛片 久久91中文字幕 国产精品久久一区二区三区蜜臀 日本色惰视频 久久国产精品国产精品99 国产激情对白视频在线观看 在线A片永久免费看无码不卡 成人纯h小说网站 狂野欧美性猛交免费视频一 av免费在线观看网址网站 亚洲精品在线观看中文字幕 东京复仇者在线观看 一女三男做2爱A片 在线欧美日韩免费观看 日韩人妻熟女一区二区三区 人妻激情乱视频一区二区三区 老司机免费色视频 少妇人妻在线一卡 浓毛大屁股BBW 又黄又硬又爽的视频 久久精品国产精品亚洲艾草网 日韩欧洲在线高清一区 CHINESE乱子伦XXXX 农民工简易窝棚嫖妓精彩对白 成人av看看永久免费发布 亚洲中文无码H在线观看 产精品毛片av一区二区三区 亚洲老熟女在线观看 国产影片中文字幕久久 黄 色 网 站 成 人在线 亚洲国产精品第一区二区三区 国产毛片精品一区二区在线 男女一进一出猛进式抽搐 久久精品亚洲影院 亚洲熟女爱爱高清 亚洲欧美有码无 18美女洗澡光胸光屁屁无遮挡 老司机免费色视频 日韩人妻熟女一区二区三区 国产中国男男 Japan Video XXX 伊人加勒比久久av 午夜精品一区二区三区福利片 亚洲成人av在线播放网站 日韩高清网页 麻豆国产精品va女在线观看 67194老司机午夜影院 国产亚洲无遮掩成人影院 亚洲乱码国内精品一区在线 免费观看午夜av福利 波多野结衣一二三区免费 亚洲欧美成人综合图片区 91精品国产综合久久香蕉网 亚洲欧美熟女一区二区 日本免费电影一区二区 黄色91影院 悠悠久久亚洲 人人狠狠综合88亚洲 免费AV网站 国产精品一区乱码 国产亚洲无遮掩成人影院 91精品国产综合久久香蕉网 中文字幕在线91 国产精品免费观看av 国产熟女久久久一区二区 亚洲电影a一区二区 国产在线精品—区二区三区 秋霞在线观看日韩av 在线视频一区二区三区在线播放 尤物av永久 最新av网站网址在线观看 av永久免费在线播放 久久精品国产影片 91亚洲欧美在线观看 美女隐私尿口视频网站 h高潮嗯啊娇喘抽搐高女女视频 男人天堂大片 国产精品区久久久 亚洲一道本av网站在线 18禁成人国产又黄又爽 亚洲成人精品av在线观看 亚洲激情欧美另类 日韩免费av电影网址 久久综合综合久久äV在钱 亚洲欧美清纯另类 精品偷自拍另类在 欧美日韩亚洲视频一区二区三区 亚洲欧美日韩在线不卡 日本黄色视频网站啊啊啊 无码专区久久综合久中文字幕 99久久精品久久久久清纯 亚洲av大片在线播放 综合欧美第一页 亚洲精品亚洲人av 大量国产私密保健视频 被上司调教的人妻 波多野结衣毛片在线看 性生大片30分钟免费观看 亚洲66av 国产av色黄网站 h动画网站在线观看 国产午夜精品理论片免费观看 亚洲欧美熟女一区二区 高潮爽到爆的喷水女主播视频 亚洲成人a级电影 国产精品网站免费观看 国产高清视频一区二区三区 大色妞在线视频 AV老司机午夜福利片免费观看 久久99九九99九九精品 A毛片免费全部播放无码 国产啪精品视频网站免费观看 极品av高潮 亚洲国产精品自在线一区二区 国产精品嫩草影院123 亚洲欧美日韩乱码人妻精品 国产av三级 免费午夜福利啪啪 国产老熟女aⅴ 亚洲欧洲日韩国内高清 午夜精品理论片久久久 国产成_人_综合_亚洲_国产 亚洲国产精品第一区二区三区 加山夏子中文在线播放 熟女av在线免费观看 丁香六月男人天堂 国产成人一区二区国产 十八禁免费在线网站 少妇富婆高级按摩出水高潮 日本人69xXⅹ69护士 久久播国产精品 av在线影片 欧美亚洲综合在线中文字幕 污18禁图无遮挡开腿 亚洲av在线观看电影 午夜黄色视频在线观看免费不卡 18禁成人国产又黄又爽 最新中文字幕永久视频播放 国产精品久久一区二区三区蜜臀 美女被别人操高潮的视频免费 色AV专区无码影音先锋 国产亚洲人成在线网站 欧美va日韩va亚洲va 一区日韩二区人妻精品av 亚洲av熟女诱惑 免费人成网站在线观看不 日本网址在线 边吃奶亚洲一区二区 五月激情麻豆 狠狠色综合网丁香五月 把少妇弄高潮了WWW 78m成人免费视频国产av 国产成人一区二区国产 欧美变态另类Z0Z0禽交 欧美91激情亚洲 成人免费A级毛片无码网站 亚洲精品美女中文在线 久久无人码人妻一区二区三区 亚洲成av人影院一区二区 粉嫩精品国产尤物在线观看 色播在线免费播放 日韩亚洲欧美乱码 亚洲图片自偷自拍 67194老司机午夜影院 女人和男人啪视频在线观看 国产老妇伦国产熟女老妇高清 水蜜桃无码视频人在线观看 午夜福利国产精品 免费观看午夜av福利 国产免费av电影不卡 91av在线看 国产丝袜高跟一区 国产3p一区二区三区视频 欧美成人精品一区二区三区中文 国产精品视频视频一区 国产老妇伦国产熟女老妇高清 69精品人人人妻人人玩嘿嘿 国产免费一级一片粉嫩 制服丝袜av最新看片 无码小电影在线观看网站免费 亚洲成人精品av在线观看 亚洲另类春色国产精品 亚洲欧美精品一区在线观看 国产精品一区二区av片香蕉 人人揉揉香蕉大免费 三男一女伦交过程 禁止的爱善良的未删减版在线播放 色欲色天香综合免费AV 欧美日韩亚洲天堂久久 GAY男男自慰免费播放 韩国公妇里乱片A片中文字幕 亚洲a∨中文字字幕乱码 人人妻人人做人人爽欧美一区 国产精选在线观看视频 久久精品这里只有久久精品 国产熟女久久久一区二区 久久国产99精品日本三级 12萝自慰喷水亚洲网站 精品国产麻豆一区二区av片 国产熟女av自拍 清纯唯美亚洲欧美久久精品 久久精品国产影片 亚洲欧美日韩久久中文字幕 久久伊人蜜桃 91xh国产在线 中文字幕在线91 四个闺蜜把我弄高潮了 日本激情电影一区二区 黄色91影院 国产精品嫩草影院99a 国产精品嫩草影院123 色伊人亚洲乱码 12萝自慰喷水亚洲网站 欧美另类videosbestsex日本 轻轻草免费在线视频 AV无码天堂一区二区三区 国产精品三级在线观看三级 免费的人成网站大全在线观看 白丝班长深夜被啪到娇喘不停 国产成人久久综合一区 欧美人妻AⅤ中文字幕 波多野结衣一二三区免费 一本色道久久高清精品网站 岛国免费动作片AV无码 国产丝袜女王foot脚交 黄片免费在线播 乌克兰少妇性疯狂 禁止的爱善良的未删减版在线播放 亚洲欧美成人综合图区 国产午夜精品理论片免费观看 国产av色黄网站 护士穿丝袜被弄高潮视频 男女真人后进式猛烈动态图无打吗 国产综合色产在线精品 日本不卡一卡新区手机 成年人的黄色视频永久免费 2020国产精品久久久久精品 在线免费观看精品玖玖在线视频 一万部小泑女视频...导航网站 在线成H人视频免费 老妇炕上偷汉视频录像 久久亚洲专区午夜福利 有码中文字幕在线 91av午夜在线 又大又粗进出白浆直流视频在线 高级会所人妻互换 av免费在线观看网址网站 CHINESE中年熟妇FREE 午夜131美女爱做视频 男女下面最刺激的视频网站 国产精品泄火熟女 青青草原精品在线观看 一个人免费视频在线观看 午夜131美女爱做视频 国产精品福利视频在线观看 色99国产精品 久久这里只精品国产免费9 黄色视频不卡免费观看 亚洲欧美色老头 久久99九九99九九精品 久久精品国产乱子伦免费 免费黄片一级视频 日本高清性视频 丝袜美腿诱惑国产三区 国产精品久久久久久麻辣 日韩高清在线一区观看 欧美精品在线观看一区二区 9热99这里只有精品 三级a黄色毛片 国产精品导航网站 久久精品国产免费久久 深夜福利免费卫生纸请准备 成人欧美一区二区三区黑人天掌 国产成人AAAAAA网站 国产亚洲精品精品一区二区 国产久久精品久久 男女一进一出猛进式抽搐 国产av大香蕉 国产熟女久久久一区二区 国产av大香蕉 国产亚洲成av人片在一线观看 中文字幕在线91 国产疯狂女同互磨高潮在线看
        看一个黄色一级片| 白嫩少妇私密保健按摩| 国产亚洲成av人一级毛片| 日韩麻豆av中文字幕在线观看| 午夜激情不卡视频| 久久av网站| 免费一级毛片全部免费播放视频| 国产性熟妇精品老妇| 亚洲香蕉中文日韩V日本| 美女黄网站18禁免费看| 国产又粗又猛又大又爽又黄视频| 国产av电影区二区三| 欧美性事xxxx| 成a人片在线观看网址| 亚洲精品无码鲁网午夜| 少妇人妻偷人无套精品激情视频∴ | 无遮挡免费在线观看视频| 里番高H无码无修在线观看| 欧美色倩网站大全免费| 日本搞黄色视频网站| 裸体无遮挡免费视频网站| 人妻内射三区| 亚洲私人影院av在线观看| 在线A片永久免费看无码不卡| 久久j香五月| 免费黄网黄色影院网站| 国产亚洲综合欧美一区| 免费看a级毛片全部在线播放视频| 玩弄人妻少妇精品视频| 又色又爽了又黄视频| 亚洲超碰久久久久中文字幕| 亚洲精品 国产成人| 亚州一区二区三区av无玛| 波多野结衣毛片在线看| 性大片免费播放器| 一小时处破之好疼高清视频 | 欧美日韩在线大片| 亚洲图片自偷自拍| 亚洲av成人精品一区久久| 日本欧美一区二区视频在线观看| CHINESE激烈高潮HD| 福利av国产精品久久天堂| 人人久久精品亚洲| 777米奇影院奇米网狠狠| 91视频中文字幕永久免费| 欧美牲交xxx| 97人妻人人揉人人澡人人下载| 九九线精品视频在线观看视频| 国产快色在线| 久久伊人热精品| 丰满熟妇乱又伦| 午夜精品色播av国产精品| 久久精品人妻少妇| 公与妇电影三级| 2021在线精品自偷自拍无码| 欧美日韩国产精品精品| 亚洲精品欧美系列| 日韩亚洲欧美专区| 亚洲4438x20| 在线天堂最新中文网| 日本护士被强行XXXX| 亚洲老熟妇熟女| 日韩国产精品免费av久久98| 婴儿边吃奶边睡觉| 欧美激情av另类| 亚洲码与欧洲码区别一二三四| 国产亚洲福利精品一区二区| 18禁止观看强奷视6美女裸体频| 少妇午夜福利一区二区三区| 久久av午夜福利www免费在线观看| 亚洲国产影片在线观看| 亚洲av日韩精品,国产av| 又大又黄又爽又免费的视频| 天天干精品国产一区二区三区| 国产99精华液| 91人妻人人妻| 欧美精品日韩精品国产精品.| 人妻偷人系列| 亚洲国产成人麻豆| 在线观看免费国产黄片啊啊啊受不了了 | 国产女啪啪视频| 日日躁夜夜躁狠狠躁2022年| 亚洲综合在线国语| 黄色成人免费网站| 99久久精品国产一区色| 18毛片免费女人视频| 交换配乱吟粗大农村大坑性事 | 免费a级高清毛片| 黄频视频免费看| 波多野结衣高清中文aⅴ| 成在人线AV无码免费高潮水| 日韩欧美精品一区二区综合视频| 青青草原青青| 久久久久久成人精品鲁丝电影| 日本国产欧美不卡| 18禁勿入网站入口永久| 激情偷乱人伦av| 99热这里只有精品re6| 天天爱夜夜做| 久久综合爱一本一本| 男男啪啪激烈高潮漫画免费| 国产精品久久久久久精品三级麻豆| 老司机av电影网免费| 久久久久久精品免费免费直播| 久久成人av精品| 丰满人妻被公侵犯的电影中字版| 欧美日韩中文字幕国产精品一区二区三区 | 国产激情久久久影院小草| 亚州国产av| 久久夜色精品亚洲噜噜国| 国产毛片久久久久久高清美女| 女人被爽到呻吟的视频| 97超碰大香蕉| 女生免费看毛片| 1300部真实小U女视频合集| 欧美日韩精品成人二区a∨| 亚洲第一av色| 在线观看中文字幕激情网站| 亚洲av麻豆av一区二区三区| 对白离婚国产乱子伦视频大全 | 欧美sexavhdfree| 欧美成人一二区| 日产精品卡二卡三卡四卡公司| 超级乱淫免费av| 久久黄色一级视频免费试看片国产精品一区二区色就是 | 国产欧美一区色二区三区| 欧美乱子伦XXXX12| 成人黄色aa毛片| 国产av一区二区三区色在线| 欧美日韩久久成人一区二区 | md传媒免费全集观看在线观看| 欧美精品人与动牲交sv欧美| 日本淫妇xxww老女人,| 女人裸体网站一区二区三区| 亚洲成人av.| 无码专区人妻系列日韩精品| 夜夜爽人人爽| 国产丨熟女丨国产熟女一区| 亚洲av色婷婷精品久久| 久久精品国产72国产精久久精品| 在线视频 欧美日韩一区| 最新国产亚洲av福利| 在线免费视频999| 国产91在线精品福利 | 成人女人久久电影| 精品久久青草| 久久久精品专区| 国产黄色a级| 男女边摸边吃奶边做视频大全| 我与么公激情性完整视频| 日韩国产精品久久久久久亚洲| 国产99re在线视频观看| 亚洲美女偷拍自拍| 免费人妻中文字幕不卡| 97超超级碰碰碰| 丰满巨肥大屁股BBW网站| 91久久久国产精品| 国产99女人精品| 国产精品一区二区在线现看| 别揉我奶头啊嗯嗯h视频| 亚洲av永久码av激情| 亚洲精品国产有码| 欧美无乱码激情| 成人欧美一区二区三区黑人天掌| 人人妻人人澡人人爽人人| 亚洲国产午夜精品av在线| 欧美一区二区三区精美视频| 亚洲av午夜看片| 99热都是精品久久| 人妻av无码专区久久| 影音先锋无码AⅤ男人资源站| 国产av网址大全| 午夜一级在线免费观看| 亚洲一区av二区在线播放观看| 色狠狠久久AV北条麻妃| 疯狂做受DVD播放免费| 久久大香蕉精品视频| 国产成人精品亚洲区| 国产成人一区二区精品播放| 亚洲另类春色国产精品| 人妻激情视频一区二区三区| 成年视频人免费站| 国产精成人品日日拍夜夜| 91香蕉久久精品网| 日韩免费播放一级毛片| 久久精品亚洲精品国产区美 | 亚洲精品美女中文在线| 亚洲精品乱码久久久久久v综合木| 久久久久久久久久久久久久久久久毛片| 看三级精品国产三级精品| 日韩国产欧美一区二| 黑人强伦姧人妻日韩| 午夜福利在线观看一区二区| 久久精品人人做| 韩国三级黄色伦理电影| 日韩一级片内射视频4| 黄频在线免费观看aa| 亚洲熟妇大图综合色区| 美女免费黄频视频| 久久久久久精品91| 日韩欧美亚洲国产| 一个人免费视频在线观看| 日本黄色av毛片| H|D专干日本老太婆| 欧美高清另类hdvideosex| 国产偷国产偷高清精品| 亚洲精品国产av久久久久| 香蕉视频国产在线看| 成年女人免费影院| 国产亚洲精品视频免费| av无码av在线a∨天堂| 欧美日韩精品网址| 亚洲va在线播放观看| 久久婷婷国产精品综合| 国产亚洲精品久久久久毛片| 亚洲黄色一区二区| 日本樱花草视频高清观看| 国产亚洲午夜高清国产拍精品| a级毛片黄色视频在线播放| 成人高清毛片| 亚洲国产综合在线播放av66| 亚洲最大一区av| 青柠在线观看免费高清完整版 | 久久久久精品国产片毛片| 狠狠躁夜夜躁人人爽天天天天| 日韩欧美视频精品| 国产奸在线观看| 亚洲婷婷伊人网| 成人无遮挡在线看| 黄上黄床高清大全在线免费看| 成人影院亚洲av| 欧美亚洲综合天堂| 精品香蕉视频精品在线观看| 高清免费安全美女视频| 欧美老头操老妇xxbb| 欧美 日韩 激情 另类| 亚洲欧洲日韩国内高清| 樱花草视频高清观看日本| 大胆大少妇xxxbbb| 国产99久久亚洲综合精| 午夜男女大片免费观看18禁片| 巨乳av免费在线观看| 国产精品.久久久| 日本欧美一级精品在线观看| 国产午夜理论大片a级毛片| 欧美精品一区二区,| 亚洲人成色77777在线观看| 一区二区三区精品国产欧美1 | 欧美青涩第一页| 日韩欧美一区二区三区精品影视 | 高清全集免费播放| 天堂网最新版资源在线www| 久久综合久久自在自线精品自| 沈阳60老熟女高潮| 人妻字幕久久| 欧美黑人xxxx又粗又长| 亚洲精品久久欧美| 亚洲熟妇AV一区| 国产一级r片内射老妇a视频| 久久国产精品综合一区二区| 女生高潮抽搐喷水91av| 91国偷自产一区二区三区强| 免费视频好湿好紧好大好爽| 欧美情色国产精品| 欧美黑人巨大粗爽| 国产伦一区二区三区精品视频| 亚洲韩国日本欧美综合| 亚洲av国产aⅴ精品一区| 在线观看亚洲a| 日韩国产亚洲欧美| 天天看片高清视频| 午夜影院①区| 国产精品久久久久久夜夜嗨| 成人免费视频三区四区| 97精品人人妻人人| 在线五a级毛片| 看片久久久久久久| 免费1级a做爰片观看69网| 上床视频在线观看国产| A片在线播放| 五月婷婷六月丁香色| 五月伊人婷婷丁香| 日韩亚洲国产另类| 欲求不满人妻av中文字幕| 高清av在线| 老司机视频福利| 亚洲另类激情综合偷自拍图片| 国产超碰人人爽人人做| 青青色在线播放| 亚洲高清欧美高清| 国产精品免费久久久久影视| 国产激情av女片自拍| 看久久久久久a级毛片就 | 亚洲欧美在线看看| 99久久夜色精品国产亚洲一区| 国产欧美日韩黄片| 四虎4HU国产精品| 又黄又嫩又粗又硬视频| 午夜老司机福利片| 黑人逼太紧视频| 黄色美女视频亚洲| 国产精品导航网站| 日日撸夜夜欢| 国产精品久久草| av自拍亚洲国产| 日韩欧美亚洲视频在线观看| 色妞视频网站| 国产精品天干天干在线综合| 又黄又硬又爽的视频| 日韩欧美三级三区| 免费观看国产黄色视频| 永久免费AV无码网站04| 成人av片一区二区| DJ国产一卡二卡三卡| 国产毛片精品一区二区三区| 国产精华免费| 5566亚洲精华国产精华精华液| 国产成人a亚洲精v品| 婷婷六月亚洲中文字幕| 中文字幕三区精品久久| 鲁丝av影片| 激情偷乱人伦av| 亚洲电影a一区二区| 又大又黄又爽又免费的视频| 免费成人大片播放器| 国内精品久久国产| 亚洲另类清纯| 亚洲精品美女久久久久99蜜臀| 一区二区国产精品欧美| 99久久精品久精品| 欧在线一二三四区| 亚洲av手机在线观看| 成人在线小说高h| 啪啪免费福利午夜| 国产精品超碰久久久| 高清国产av| 中文字幕在线免费观看日韩| 色呦呦网站在线观看| 亚洲五月天狠狠夜夜| 亚洲成年毛片| 亚洲欧美一区二区三区孕妇| 亚洲天堂av无毛| 久久精品国产熟女亚州av麻豆| 欧美性群另类交| 亚洲影院久久精品| 婷婷色亚洲av| 东京复仇者在线观看| 四虎4HU国产精品| 制服诱惑一区二| 国产女人夜夜春夜夜爽| 日本高清视频免费观看网站| 日日搞日日撸夜夜搞夜夜干夜夜插| 亚洲精品成人网| 亚洲精品一区二区成人福利| 伊人伦理三级| 国产高清精品免费精品| 免费视频国产视频| 亚洲欧美色国产精品| 精品久久久久久久久视色限时免费| 一本色道久久| 亚洲av制服师生一区二区三区| 亚洲av电影专区一区二区| 色哟哟观看入口| 日韩欧美精品在线免费观看视频网址入口 | 日本电影中文字幕一区久久久久久久看| 国产成本人片免费av| 国产精品日韩欧美| 俄罗斯老熟妇色XXXX| 香蕉在线观看视频精品欧美| av天堂资源中文在线| a级毛片特级毛片免| 亚洲精品www久久久久久久| 医生帮我取出里面的球| 久久成人伦理视频| 各类熟女熟妇真实视频| 亚洲一区二区三区欧美精品| 国产日韩欧美91| 国产精品一区二区香蕉| 亚洲区中文日韩国产精品| 久久九九99久久精品国产72| 久久青青狼人影院| gay男男啪啪中国国产chinese男男gaygay| 国产高清真实破学生处| 免费可以看的黄片视频| 欧美日韩国产高清在线观看| 93久久精品人人妻人人爽| 国产高h片在线观看| 日韩一二三区视频免费观看| 亚洲另类春色国产精品| 久久人人爽人人爽从片a| 有码中文字幕在线| 国产成人av在线影院| 日韩一区二区视频免费看| 18禁无遮挡黄网| 国产色无码专区在线观看| 亚洲综合色噜噜狠狠网站超清| 欧美日韩在线视频在线观看| 午夜福利在线亚洲| 在线视频 欧美日韩一区| 久久精品国产亚洲无套av麻豆| 国产激情后入视频在线观看| 久久精品国产亚洲av麻豆天堂| av乱码久久久久久一区二区| 区二区三区精华液| 激情伦在线观看| 中文字幕av熟女肥臀人妻| 午夜福利一区二区在线播放| 少妇人妻真实偷人精品视频,| 最新亚洲av天堂| 一区二区欧美亚洲| 女人被爽到呻吟gif动态图免费| 九九黄色视频免费看| 亚洲精品97在线| 麻豆成人短视频在线观看| 久久综合黑丝| 男女交配视频免费观看午夜国产精品 | 午夜精品久久久久久99精密桃| 亚洲码与欧洲码区别一二三四| 国产老熟女aⅴ| 国产亚洲精品视频免费| 亚洲精品乱码b| 亚洲熟妇久久精品bbwbbw| 久久99久久精品,99久久综合| 中文字幕久久h| 宅男午夜激情一区二区免费播放| 国产精品白丝流水jk娇喘视频| 国产精品久久久aaaa| 男女那个视频网站在线观看| 欧美黑人a区| 久久99九九99精品| 人妻无码AV中文系列久久免费| AV无码A在线观看| 国模生殖欣赏人体337| 爱爱aaa噜噜| 欧美日韩亚洲天堂久久| 国产大片在线观看一区二区| 精品久久久久久久久人妻无吗中出 | 精品亚洲999| 精品少妇熟女在线| 亚洲熟女午夜福利在线观看| 无码亚洲成A人片在线观看手机看| 客厅乱H伦亲女| 日韩欧美乱码在线| 亚洲va精品| 女人裸体网站一区二区三区| 国产成人精品亚洲日本直播| 亚洲美女久久p| 亚洲三级国产av| 人妻3p精品视频| 国产三级成人不卡在线观看 | 2021精品国色卡一卡二| 免费人成网站视频在线观看不卡| 腐女必看18禁电影无遮挡男男| 国产黄色免费观看视频| 成人做爰视频ww网站| 国产午夜精品一区二区三区,| 久久精品亚洲影院| 伊人青青大草原| 成年黄页网站大全免费看| 精品一区二区电影在线| 亚洲激情成人色| 伊人久久大香线蕉一区二区| 亚洲天堂网av网站| 欧美日韩高清有码| 日韩在线观看av一区| 奇米网777色在线精品| 黄片日韩欧美| 国产亚洲欧美精品久久久| 亚洲不卡中文字幕| 一本久久a久久免费综合| 久久中文字幕资源网| 色哟哟网站www入口免费| 国产精品色热综合在线| 特级太黄A片免费播放| 国产色综合久久无码有码| 国产精品国产三级在线观看| 国产精品国产三级国产av尤| 永远的赞歌女声完整版| 国产色女视频在线| 欧美黑人XXXX性高清版| 亚洲中文无码卡通动漫野外| 久久热这里只精品99| 偷国产精品偷伦视频免费观看| 欧美18性xxxx18性欧美| 人妻少妇久久久久久97人妻二| 女被男啪到哭免费视频 视频| AV人妻无码不卡手机在线| 亚洲av色婷婷精品久久| 精品久久久久av电影| 久久久精品午夜福利电影网| 琪琪国产内射激情| 亚洲人成无码网WWW电影| 亚洲欧美日韩一区二区三区福利 | 国产精品99精品一区二区三| 日韩免费高清中文字幕av| 国产又爽又黄又免费观看视频| 欧美亚洲国产另类精品| 欧美日韩高清免费不卡| 60分钟床上大片| 中文字幕-色哟哟| 一区二区三区精品毛片| 小黄片免费看无遮挡| 无码少妇一区二区浪潮av| 无码黄动漫在线观看| 亚洲丰满熟妇哎xxxⅹ色| 国产精品国产三级国产专区5o | 丰满熟妇老熟女av| 国产呦萝小初合集密码| 丁香国产五月| 色视频日本免费观看| 成人区人妻精品一区二区三区| 成熟老太毛茸茸BBWBBW| 国产一区二区的免费在线播放| 亚洲欧美日韩精品一区二区| 涩涩爱成人免费视频| 99久久精品这里只有精品| 不卡的av在线播放| 久久久久国产精品美女毛片| 男人扎进女人下边视频| 日本午夜电影区一区| 国产av不卡久久| 工口网站在线观看| CHINESE中年熟妇FREE | 欧美人人妻人人爽| 国产免费一级一片粉嫩| 日韩中文字幕人妻一区二| 高潮喷水av在线| 国产精品一区二区2| 精品国产欧美一区二区最新| 在线天堂WWW在线资源| 国产老妇女一区二区| 婷婷综合激情欧美熟女极品另类| 天堂网 www 最新版在线| 国语对白清晰露脸视频在线播放| 少妇又粗又猛又爽又黄的视频| 狠狠爱天天噜日日噜视色| 岛国av高清不卡免费| 999欧美精品一区二区三区| 毛片av免费看| 久久精品亚洲精品国产区美| 最新欧美日韩国产在线观看| 久久久久久有精品国产24| 一区二区日韩电影院| 亚洲国产精品人人做人人爱| 最新精品福利在线观看| 美日韩精品视频一区二区| 国产精品亚洲一二三在线| 偷窥淋浴XXXX| 国产免费一区二区三区电影| 成人国产精品一区二区不卡外郭片 | 日韩人妻一区三区| 肉体裸交137日本大胆摄影| 一级做a爰片久久精品毛片| 中国特级淫片久草视频 | 毛片一级片免费看久久久久 | m131午夜福利| 人妻少妇中文字幕久久| 精品国产麻豆之精品国产| 久久国产精品人妻熟女| 无遮挡黄片在线看| 亚洲欧美在线看看| 国产精品嫩草影院99a| 久久久久久熟女| 夜夜澡一区二区三区精品| 日本熟妇人妻XXXXX18| 香蕉久久久久久久| 在线看片激情亚洲| 成在线人免费视频一区二区| 国产精品黄视频美女| 人妻少妇精品久久人妻| 久久国产精品亚洲精品| 性高朝大尺度少妇大屁股| 亚洲国产一区二区久久| 日韩亚洲欧美专区| 久久中文字幕久久| 美女黄网站色视频| A级毛片高清免费视频大全| 亚洲欧美久久婷婷| 97国产人妻人人爽| 免费看很黄A片试看120秒| 亚洲国产精品久久久天堂不卡| 啦啦啦啦视频在线| 国产亚洲精品精品国产优播av| 成人午夜网站欧美| 可在线免费观看av网站| 国产午夜免费啪视频观看视频| 亚洲午夜精品久久免费影院| 国产福利精品一区| 男人午夜福利在线观看| 一级a做片免费久久| 国产精品免费久久久久久久| 一二三在线观看日本视频| 99热6这里只有精品| 性少妇videoxxx欧美69| 精品欧美激情免费观看| 性啪啪chinese东北女人| 国产一区二区三区视频网| 一区二区三区国产综合在线观看| 老湿机69福利区无码| 国产精品久久久久精品一级| 国产精品亚洲大片| 欧美视频在线观看日本| 亚洲视频在线观看一区视频| 久久精品国产亚洲av久试看| 国产三级精品国产三级人妇在线| 久久久久亚洲av成人网人人网站2 精品伊人久久大线蕉色首页 | 五十熟女人妻少妇精品视频| 老熟女 露脸 嗷嗷叫| 特别黄的免费大片| 亚洲欧美国产中文字幕乱码| 美女的逼视频免费观看| 亚洲精品天堂av在线观看| 亚洲另类激情综合偷自拍图片| 免费人妻精品一区二区三区0| 看黑人巨大精品欧美一区二| www.99re热国产精品一区| 男女视频网址免费| 久久av爱久久中文字幕| 亚洲AV永久无码精品| 欧美午夜更新| 成人黄色视频网站有哪些| 久久资源久久人妻| 国产综合色精品| 女人18毛片a级18毛片水真mo| 你懂的午夜电影| visa卡收费| 上别人丰满人妻| 一区二区av电影网| 久久99精品久久久久久蜜芽TV| 久久在这里精品99| 俄罗斯O|老太和小男| 亚洲精国产99| 欧美性XXXX极品少妞| www.国产亚洲精品久久久| 99精品不卡国产福利在线观看| av蜜桃在线三区| 超薄丝袜美腿玉足激情| 亚洲av一码| 中文国产成人精品久久久| 国产中文色婷婷久久久精品| 亚洲伊人久久综合影院| 一出一进一爽一粗一大爽文| 五月天国产成人AV免费观看| 久久人人爽人人爽人人片宅男| 亚洲欧美日韩国产不卡| 少妇的丰满A片| 欧美精品久久久久久久电影| 国产乱子伦普通话对白| av乱码久久久久久一区二区| 波多野结衣毛片大全| 人人妻人人澡人人妻| 热久久精品牛牛影院| 又爽又黄又无遮挡的视频在线观看免费 | 国产三级精品三级在专区| 国产激情偷乱视频一区二区| 张筱雨人体337P人体| 国产中年淑女户外野战色| 把少妇弄高潮了WWW| 国产黄色无遮挡网站| 白丝无内液液酱视频在线观看| 欧美日韩亚洲精品国产| AV免费观看| 一级a做爰片在线观看 | 桃花视频在线观看高清播放| 精品国产av自拍| 久久综合亚洲色一区二区三区| 欧美黑人精品一区二区三区| 精品欧美一区二区三区四区五区 | 成人一区二区视频地址| 精品国产极品美女在线观看| 男人搞女人的黄色视频免费观看| 亚洲色图欧美电影国产精品| 无遮挡十八禁污污污网站| 国产精品裸体舞一区二区三区| 欧美亚洲一区国产| 亚洲中文子幕乱码电影| 香蕉精品视频网址| 91精品国产综合久久香蕉久久 | 91精品国产综合久久香蕉网| 国产精品一区二区三区四区亚洲| 欧美日韩一区不卡| 日韩三级免费黄色片| 国产成人久久久精品二区三区 | 黄片大全www| 久久久久国产刺激毛片| 免费高清毛片在线播放| 日韩精品第1页| 中国GAY男男AV毛片免费看| 91嫩草在线播放| 国产av三级一区| 精品国产二区在线| 天天天天做夜夜夜爽| 护士奶头又大又软又好摸| 久久久人妻中文字幕| av网站国产日韩| 一级毛片免费播出| 国产精品女同一区二区软件| 久久这里都是精品6| 精品国产美女久久av| 亚洲av一影院| 高H玩弄花蒂尿出来| 性欧美暴力猛交69hd| 亚洲成av人在线视午夜片| 欧美精品v欧洲精品黑人| 久久伊人香网站| 国产特黄免费视频| 国产一级r片内射老妇a视频| 久久香蕉精品热| 午夜最新福利视频| 精品亚洲欧美一区二区三区| 成人av原网站| 欧美熟妇性XXXX交| 天天摸夜夜添狠狠添高潮出水| 久久9精品视频| 国产一区二区三区播放| 久久热视频这里只有精品99| 新生儿为什么边吃奶边哭| 国产精品综合久久久久久久免费| 小的学生VIDEOSEX| 制服诱惑一区二| 久久国产乱子伦精品免费女人国产 | 97夜夜澡人人爽人人喊中国片| 老湿机免费体检三分钟十八岁| 又黄又爽又色18禁网站| 国产女人水真多18毛片18精品| 亚洲AV色先锋资源电影网站| 国产成人剧情av麻豆映画 | 欧美在线成人观看视频| 欧美黑人成人三级| 欧美一级特黄啪啪片免费| 久久精品视频,久久精品视频黄色| 国产日韩欧美亚洲精品| 人妻系列AV无码专区| 日韩欧美精品人妻| 国产成人一区二区午夜精品| 亚洲综合色区另类小说| 免费看男阳茎进女阳道视频| 日韩欧美中文字幕五月婷| 久久e热在这里只有精品99| 亚洲欧美综合首页一区| 日韩成人av一区二区三区 | 最刺激的交换夫妇中文字幕| 日本专区 在线观看| 欧美日韩国产高清| 18禁无遮挡无打码| 国产午夜理论大片a级毛片| 又黄又爽a成人免费视频| 欧美特黄特色三级视频在线观看| 人妻暴雨中被强制侵犯| av官网中文字幕| 亚洲精品成人av一区二区| 国产三级精品二区| 侵犯洗澡女教师在线观看| 18禁在线欧美| 女人梦到自己开车撞到人人没事| 久久久精品国产亚洲av一二三| 可以在线观看的黄网站| 成人有码日韩| 欧美91成人亚洲播放网站| 久久久久久国产成人趴趴| 我与么公激情性完整视频| 韩日中文字幕在线免费视频| 久久老司机午夜福利| 性欧美videofree高清69| 欧美专区一区二区三区四区 | 变态挤奶水AV大片| 日韩无6码一区二区| 国语自产拍在线观看下载 | 国产激情久久影院| 亚洲免费的av电影| 欧美性色欧美精品视频69| 一区麻豆av| 黄网网站在线观看| 亚洲精品美女久久av网站| 最新男人v天堂在线| 岳好紧好紧我要进去了视频| 欧美亚洲国产另类精品| 国产3p一区二区三区在线| 久久精品成人免费国产片小草| 丰满日韩放荡少妇无码视频| 老湿机69福利区无码| 精品视频在线专区| 国产综合av性色在线影院| 午夜亚洲久久久| 免费一级毛片高清播放| 亚洲国产精品高清线久久dvd| 亚洲av国产aⅴ精品一区| 亚洲xxxx日韩| 亚洲成年黄色片| 精品少妇内射三级| 国产亚洲精品精品国产优播av| 亚洲伊人av综合| 中文精品影院| 欧美日韩视频在线观看一区二区| 欧美亚洲免费激情综合| 中文字幕久久久一区| 国产一级淫片永久免费看美女| 少妇最高潮| 99精品中文字幕| 亚洲最大av电影网| 欧美www.一区二区三区| 亚洲精品第10页| 乱码日韩欧美| 后入国产在线观看| 国产精品激情综合| 中国女人内谢69XXXX视频| 高清一区二区三区欧美| 成人www网站视频在线看| 成人av看看永久免费发布| 成人黄网站免费视频性色| 国产精品亚洲А∨天堂网不卡| 亚洲视频精品在线| 精品免费视频中文字幕| 中文字幕久久有码| 日本一级中文字幕久久久久久| 精品国产一区二区三区不卡| av毛片免费下载| 成在线人免费视频一区二区| 97人妻起碰免费公开视频| 成 人 网 站 免 费 AV| 在线观看肉片AV网站免费| 最新黄色免费在线网站| 一级做a爱片久久毛片a高清| 国内夫妻福利视频| 中文字幕av亚洲精品一| 国产特黄三级在线观看| 5566中文字幕在线观看| 精品国产av自拍| 亚洲精品成人久久久久久| 香蕉视频下载色版| 亚洲黄色日本视频| 中黄油漆配什么颜色好看| 男女乱婬真视频全过程播放| 3D动漫H在线观看网站蜜芽 | 机机对机机三十分钟无遮挡| H肉无修动漫在线观看应用| 国产亚洲99久久精品熟女av| 色呦哟—国产精品系列| 高清中文字幕亚洲| 欧美大香线蕉线伊人久久国产精品| 亚洲欧美综合国产精品日韩蜜臀| 男女猛烈啪啪无免费遮挡免费观看| 日韩欧美亚洲一区二区| av最新版在线| 久久看美女高潮喷水| 久久国产女精品你| 在线日韩精品第一页| 国产乱理伦片在线观看夜| 免费边摸边吃奶叫床视频 | 亚洲精品美女中文在线| 波多野精品一区二区三区色情| 中国浓毛少妇毛茸茸| 欧美成人免费全部网站| 亚洲熟妇久久精品| 老女人牲交视频大全| 亚洲成a人线上播放| 午夜福利网在线观看| 中文字幕日本乱码电影| 国产欧美亚洲福利| 黄色视频免费看永久免费| 欧美18性xxxx18性欧美| 久久久久久九九精品二区国产| 亚洲精品国产乱码久久久久久 | 97人妻人人~碰人人爽| 久久久久久久午夜电影| 国产喷水潮视频| 成人大片免费视频播放| 国产高清videosdesex| 亚洲美女黄片视频| 最近免费高清视频观看日本| 亚洲av免费电影在线| 乱人伦人妻在线| 少妇一区2区三区| 精品一精品国产精品| 黄色床上戏免费看| 我要看黄色片黄色片| 亚洲十八岁女人毛片水多| 成人国产麻豆网| 亚洲欧美精品专区久久| 综合九色综合欧美狠狠|| 三级a毛片免费| 久久久久久久久精品精品| 日本黄色视频三级网站网址| free欧美性xxxx精品hd| 91中文字幕在线一区| 久久人人妻人人人人爽软件| 亚洲精品国产一区二三区| 欧美亚洲二区三区| 国产麻豆成人精品免费网站| 国产美女被遭强高潮网站下载| 国内熟妇人妻色在线视频| 老妇女性较大毛片| 成人黄色片网站| H无码精品动漫在线观看免费| GAY男男自慰免费播放| 华人黄网站大全| 68日本XXXXXXXXX色系| 豪妇荡乳1一5潘金莲| 日韩欧美亚洲国产三级黄色片| 欧美日韩国产精品一区二区| 中文字幕在线视频一区大师| 成人黄色视频中文字幕| 国产美女被遭强高潮免费网站下载| 汤姆久久久久久久影院中文字幕| 亚洲无成人码| 欧美成人国产av精品麻豆| free性欧美人与horse| av不卡久久| 强奷妇系列中文字幕| 4399日本高清完整版在线观看| 伊人久久亚洲精品中文字幕| 韩国三级午夜理论| 国产亚洲天堂| 欧美亚洲成人一区二区三区| 最新手机av网址| 亲胸揉胸膜下刺激视频免费的| 欧美VIDEOS粗暴高清| 亚洲AV午夜精品无码专区| 亚洲成人日韩在线观看| 亚洲精品加勒比av| 亚洲欧美一区二区三区黑人| 中文字幕乱码亚洲美女精品一区 | 久久精品国产亚洲av孟若羽| 丰满白嫩大屁股ASS| 在浴室强奷校花腿让人桶| 超薄肉色丝袜脚交调教视频| a级特级毛片在线播放| 又黄又爽视频好爽视频| 欧美日韩三级不卡| 青青草午夜影院| 日韩精品中文字幕视频| 西西人体大胆啪啪私拍| 久久国产乱子伦精品免费女| 亚洲精品国产成人a| 这里都是精品久久| 久久制服诱惑一区二区| 超碰成人人人在做人人爽| 高潮爽死痉挛白浆喷水np小说| 国产欧美在线一区二区三区| 小14萝裸体洗澡视频网站| 亚洲国产精品一区二区久久阿宾| 国内少妇人妻偷人精品xxx网站 | 狠狠噜天天噜日日噜视频跳一跳 | 国产白丝娇喘喷水视频| 欧美十日本十国产αⅴ在线| 日韩精品东京热无码视频播放| 产精品毛片av一区二区三区| 91久久蜜桃| 欧美一二三四区精品中文字幕| 亚洲国产欧美另类成人综合一区 | 成熟女人性生活免费视频| 国产超黄a级视频免费看| 伊人久久大香线蕉成人综合网| 亚洲综合精品偷自拍区第3页| 国产91精品网站在线观看| 老司机电影院精品福利| 18禁无遮挡黄网| 综合欧美第一页| 亚洲情av一区| 一级毛片录像带播放| 五月婷婷六月丁香中文字幕| 色偷偷人人爽| 成人精品av一区二区| 久久午夜福利片| 97人人模人人爽人人喊免费| 精品一久久久久久| 夜夜做夜夜爽夜夜摸| 天堂网在线播放中文字幕| 国产午夜真人理论片| 成年男女网站视频播放| 午夜avwww.| 吻胸脱内衣吃奶视频大全| 国产91内射毛片| 日韩免一区二区免费视频| 久久香蕉一区二区| 成在线人视频永久免费观看日韩| 亚洲熟妇自偷自拍另类电影| 97夜夜摸夜夜爽夜夜喊| www.色视频.com| 国内精品欧美激情| 欧美成人刺激A片| 2019中文字幕在线观看| 日韩中文字幕有码| 中文字幕人妻一区| 被艹的日日夜夜| 国语对白老太老头牲交视频 | 日韩免一区二区免费视频| 国产成人剧情av麻豆映画1| 免费看日本avapp| 国语对白老太老头牲交视频 | 娇小可爱学生videos15| 亚洲av222| 亚洲成人有码| 国产精品福利视频网站| 欧美另类69XXXXX| 制服丝袜国产AV无码| 亚洲日本精品影院| 爱爱永久免费视频| 日韩色欲色欲WWW图片| 日日夜夜想日日夜夜摸| 久久综合香蕉| 亚洲综合精品第一页| 亚洲av成人精品国产| 老熟女久久久| 久久久久久久久国产一区| 国产成人免费高清激情视频| 国产美女被遭强高潮动态视频| 精品人妻99| 日韩综合视频一区二区三区| 国产100000部免费视频观看| 午夜欧美激情在线| 国产40岁熟女精品观看| 搞人妻少妇精品视频| av大片久久久免费| 欧美精品一区二区大全| 日韩精品在线播放日韩| 中文字幕熟女av| 天天躁夜夜躁狠狠躁躁| 新生儿为什么边吃奶边哭| 免费人成网站在线观看不| 久久久久人妻不卡| 97人妻超碰人人| 色偷偷人人爽| 亚洲伊人久久精品综合| 99热re这里只有精品| 国产熟女一区=区| 亚洲av中文字字幕乱码综合| 国产精久久一区二区三区| 欧美丝袜足j| 九九99亚洲精品久久久久| 国产成人香蕉久久久久| 亚洲另类激情专区小说图片| 免费一级a级高清毛片人妻6| 日韩av在线播放大片| 午夜福利视频亚洲| 美女不停冒白浆的视频| 免费观看一级片app| 国产午夜精品一区在线高清| 99久久国产综合免费精品| 国产一区二区激情视频| 欧美成人影星| 久久久久久精品成国产三| setu欧美精品国产| theporn国产精品久久| 漂亮的人妻醉酒被同事玩弄全| 国产真实的乱| 乱淫视频中文字幕| 一区二区在线精品观看| h肉亚洲无遮挡久久久久| 国产熟女一区二区三区| 欧美亚洲二区三区| 在线观看人成大片免费视频| 久久精品一区二区三区中文| 国产av自拍高清一区| а√天堂资源中文在线| 欧美亚洲综合在线中文字幕| 亚洲乱码国内精品一区在线 | 久久精品专区免费观看| 国产精品区久久久| 99热在线精品这里只有精品| 中文字幕av亚洲无线码天堂| av大片不卡| 国产学生白渔网袜足脚交视频| 亚洲精品一区二区三区国产剧情| 粗大的捧猛烈进出高潮视频| 日韩精品 国产精品 欧美精品| 国产黄片精品久久久| 亚洲熟妇久久精品| 久久99精品久久只有精品| 欧美亚洲精品免费在线| 在线观看一区二区三区日韩| 狠狠拍av哪里有| 99久久精品久久免费观看不卡| 三级经典国产精品| 91xav亚洲| 传媒精品中文字幕| 少妇裸体淫交视频| 国产精品高清免费看| 我的好妈妈6高清在线观看| 国产成人AV在线一区二区三区 | 久久av亚洲一区二区三| 97人妻人人揉人人澡人人下载| 日韩高清不卡av在线| 日韩一级久久久久久久大片| 亚洲av日韩av欧v在线天堂| 国产精品美女特级片免费视频播放器| 亚洲高清专区日韩精品| 亚洲天天久久中文字幕| 免费人成视频X8X8入口| 男人日女人视频免费| 国语乱码一二| 午夜免费激情av| y1111111少妇免费观看| 一本色道久久综合亚洲精品高清| 黄网站色视频免费毛片| 亚洲av伊人久久综合蜜臀| 亚洲国产一区三区四区在线| 中文字幕+乱码+中文乱码一二三四区 | 99国产综合亚洲精品| 日本人成网站18禁止久久影院| 欧美成人高清网| 日本理论精品理论影院| 18禁羞羞照片无遮挡看男| 欧美日韩字幕一区二区| 欧美精品电影一区二区三区| 狠狠噜天天噜日日噜视频跳一跳| 老司机亚洲免费影院| 一个人免费视频在线观看| 国内精品久久久久久久电影| 青春草在线伊人| 国产激情在线视频免费观看| 亚洲一区二区三区精品av| 亚洲av乱码专区国产专区| 又黄又硬又粗又长又爽的视频| 亚洲中文字幕免费在线| 国产成人亚洲综合二区| 调教乳头的黄色视频| 欧美日韩国产乱码一二三区| 日本妇人成熟免费2020| 国产精品久久久久久av一级毛片| 亚洲色偷偷综合亚洲av伊人 | 国产亚洲精品网站在线视频| av中文字幕制服丝袜| 毛片a级毛片免费观看| 特别黄的大片| 五码一区二区三区| A级毛片高清免费视频大全| 黄a大片av永久免费| 草草CCYY免费看片线路| 色噜噜av一区二区三区| 国产午夜小视频在线| 丁香六月久草| 又大又黄又免费的视频| 一区二区免费视频中文乱码软件| 国产精品午夜a毛片一级| 亚洲av高清.| av天堂手机版亚洲| 草蜢社区在线观看免费观看| 丰满人妻中伦妇伦精品a| GAY男男自慰免费播放| 久久中文字幕熟女人妻| wwwxxx老熟女| BBBBBXXXXX精品| 久久久久精品国产亚洲av无| 国产精品一区二区在线现看| avtouchbar| 亚州欧美激情| 国产激情久久影院| 亚洲欧美最大中文字幕网 | 久久99精品一区二区三区| 大香蕉精品在线视频| 国产精品论理电影| 和艳妇在厨房好爽在线观看| www色视频国产一| 欧美精品一区二区精油| 久久人妻不卡一区鲁一鲁| 国产后入在线观看| 韩国理论电影午夜三级| 成年女人大片免费视频播放器| 国产精品久久99一区二区| 女高中生高潮娇喘喷水视频| 久久久久久精品人妻免费视频| 极品粉嫩学生国产在线| 精品一卡2卡3卡四卡| 亚洲视频免费观看网站| 一个客人的那个太大了| 久久久人人人人| 99久久精品久久免费观看| 国产av全部| 国产一区二区三区不卡免费视频| 蜜臀国内精品久久久久久久影视一| 欧美亚洲快播| 国产乱偷乱视频| 午夜无遮挡免费视频| 国产精品美女一区二区三区| 白带异常呈黄色| 男女下面最刺激的视频网站| 成人av精品麻豆| 国产三级黄色录像| 亚洲成熟丰满熟妇高潮XXXXX| 国产快色在线| 久久久久久久精品99q| 暴力强奷漂亮女同学在线观看| 午夜小视频一区二区三区| 国产免费av片在线还看下载| 高清免费在线毛片| 狠人色综合网亚洲| 一级黄色床上大片| 色SE01短视频永久网站| www.54cc亚洲| 777精品久久久大香线蕉| 幻女BBWXXXX国语| 久久色成人在线| 中文字幕精品久久伊人| 迷人的保姆在线观看| 色网站久久影院| 久久久老熟女av| 在舞蹈室与白丝袜老师做| 日韩av免费网站| 免费人妻精品一区二区三区0 | 婷婷色久悠悠| 中文有码无字幕| 中文字幕在线中文乱码不卡24| 欧美成人精品午夜视频播放| 日本大片高清视频| 男人天堂av东京| 久久99蜜桃精品久久久久cos| videos熟女内射| 公交车上人妻被涂春药| 老色鬼精品视频在线观看| 亚洲欧洲国产av码| 欧美国产亚洲精品久久| 亚洲欧美成人综合图片区| 老司机日韩新片网| 日本亚洲欧美激情视频| 92国产精品午夜免费福利视频| 亚洲综合色区中文字幕| 尤物久久99精品久久久久久| 亚洲av午夜精品福利| 玩弄人妻少妇1000系列| chinese少妇饥渴难耐videoshd | 美女福利精品久久| 精品久久久久av电影| 久久永久免费人妻精品下载| 亚洲精品久久久w| 男人和女人黄色的视频网站 | 国内精品久久久久影院观看| 好男人在线观看免费高清完整版| 亚洲国产一线视频| 两个人免费视频观看高清频道| 亚洲欧美在线观看免费视频| 女女同性AV片在线观看免费| 欧美午夜理论影片| 美女做爰高潮视频视频| 国产精品久久久久久久久av大片| 美女极品粉嫩美鮑20P图| 欧美性猛交xxxx乱大交6| 亚洲精品国产精品久久9| 三级av片免费| 张柏芝用嘴给陈冠希高潮| 日本在线有码电影网站| av永久免费不卡| 亚洲,自偷,自拍网| 丁香5月婷婷色| 免费一级做a爰片性色毛片| 大炕上泄欲老女人| 黑人一级二级三级毛片| 欧美与性动交α欧美精品| 岛国永久av网站| 99久久人妻偷人精品一| 亚洲AV元码天堂一区二区三区| 欧美性受xxxxx| 欧美精品一区二卡三卡四卡| 国产a乱精品一区| 美女黄是视频免费看| 99精品国产精品国产| 美女视频黄频a在线观看| 久久久久久久久久久免费av | 欧美乱妇高清无乱码一级特黄| 黄色片无遮挡在线免费看| 麻豆成人免费观看18禁| 超碰国产对白| www.色小姐.com| 午夜欧美极品| 日本高清视频色网站| 香蕉视频国产在线看| 国产精品免费福利久久| 成人午夜在线网站观看视频| 欧美交性又色又爽又黄麻豆| 久久国产av不卡| 久久99国产一区二区| 啪啪人妻一区视频| 欧美5~12牲交生生活| av爱爱一区av| 久久国产成人a免费观看| 最近免费中文字幕大全高清5| 国产影片一区二区| 金瓶3之鸳鸯戏床| 公与妇电影三级| 国产精品久久久久久超碰| 超碰国产精品97| 国产婷婷色一区二区三区| 国产精品影院久久| 婷婷精品久久人妻啪啪网 | 人妻久久精品一区| 午夜无遮挡在线免费观看| 日韩欧美国产视频一区| 欧美丰满熟妇XXXX| 97涩国一产精品久久久久久久| 久久久人妻中文字幕| 天天视频爽片网站免费看| 久久免费黄片| 精品中文字幕hd一区二区| 91av麻豆视频| 美女国产视频一区二区三区| 国产人与动牲交| 国产精品片在线观看粉嫩| 日日爽爽夜夜爽| 和波多野结衣一区二区三区| 情侣视频网站一区二区三区| 毛片免费费a级毛片| 精品国产女人久久久久| 黄色毛片免费孕妇| 91精品国产福利尤物免费| 免费AV网站| wwww黄视频免费| 日韩av高清在线| 美女啪啪高潮网站| 亚洲中文字幕人妻系列| 午夜久久久久久久99精品婷婷| 国产美女被强网站| 国产精品久久久久久av不卡| 看av的网址久久| 999国产成人免费视频| 国产亚洲欧美日韩99综合aⅴ| 新婚少妇无套内谢国语播放| av免费一级毛片| 中文有码人妻熟妇| 国产日韩av高清在线不卡| 3D动漫H在线观看网站蜜芽| 人妻夜夜爽天天爽三区| 忍不住的亲子中文字幕| 人妖chinesecdts在线| 婷婷国产成人一区二区| 午夜免费福利观看| 精子呈黄色状| 国产成人久久精品二三区| 久久久久亚洲精品av片| 国产毛片久久久久久高清美女| 人人妻人人干人人澡| 美女扒开腿真人视频| 免费日韩av网站| 男女国产视频网站| 内射精品视频一区| 亚洲av青草久久一区二区| 野外国产精品久久免费9|久久| 成人综合婷婷国产精品久久蜜臀| 毛片免费观看三级毛片| 久久99国产精品99| 亚洲av精品久久久久| 成人做爰www免费看视频网站| 亚洲美女网免费观看| 少妇极品熟妇人妻| 黄网站视频大全影视频大| 午夜视频在线观看免费国产| 亚洲一区二区三区四区色av| 玩弄人妻少妇1000系列| 小黄片下载免费观看视频| 亚洲日韩中文字幕无码专区| 国产真实的乱| 国产在视频线在精品视频2022| 中国女人大白屁股ASS| 黑人后入高潮 | 亚洲影院一区二区三| 久久精品国产亚洲av网站美利坚 | 欧美成人精品免费| 国产性猛交久久熟女| 亚州国产av| 久久精品人妻中文字幕| 日韩免费播放一级毛片| 中文字幕熟女人妻久久| 亚洲熟女少妇一区二区三区综合网 | 最近最新中文字幕大全10| 久久精品欧美日韩| 亚洲一区久久中文字幕| 日韩一本色道免费dvd| 宅男午夜激情一区二区免费播放| 亚洲国产精品人人做人人爱| 色老久久精品偷偷鲁一区| 亚洲熟妇自偷自拍| 97人妻碰碰免费视频网站| 欧美亚洲综合一区二区三区 | 在线观看视频看看| 国产在线视频久热欧美野战视频在观看 | 欧美亚洲一区二区三区精品| 亚洲v欧美v国产v日韩v字幕v| 久久精品这里只有久久精品| 亚洲av网址观看| 久久精品不卡av| 99久久国产综合免费精品| 久久这里只有精品666| 久久精品一卡二卡三卡四卡| 久久夜色撩人精品国产_| 成人二区二区久久亚洲| 在线A级毛片无码免费真人| 91精品国产福利尤物免费| 金梅瓶1一5集手机在线观看| 久久国产精品免费一区二区三区| 69精品久久久久乱码| 国产精品免费视频内射| 亚洲国产欧美997久久| av精品一区二区| 亚洲成人一区二区三区| 少妇人妻综合久久中文字幕| 精品久久久久久久中文字幕| 亚洲欧美日韩在线系列| 99久久人妻综合| 免费观看国产精品大全| 欧美亚洲综合在线中文字幕| 麻豆国产精品va在线观看 | 婷婷精品久久人妻啪啪网| 亚洲成人一二三区av| 黄色毛片一级的| 亚洲精选一区二区在线观看| 有希望的男人电影完整在线观看| 女高中生高潮娇喘喷水视频| 好男人好资源在线播放| 亚洲男人天堂8| 欧美黑人深夜精品免费| 亚洲欧美日韩国产精品久久| xx亚洲美女久久| 18禁男女无遮挡| 扒开老女人毛茸茸的黑森林| 国产91精品网站在线观看| 人妻人妻人人澡人人爽| 深夜a级毛片| 成年免费观看视频| 少妇裸体淫交视频| a片太大太长太深好爽在线观看| 国产精品国产三级国av中文| 欧美好吊色视频| 久热这里只精品99国产6| 国内精品久久国产| 免费看日本激情视频| 日本毛茸茸的丰满熟妇| 悠悠久久亚洲| 三级国产99久久| 三级伦理电视剧| 久久e热在这里只有精品99| 在线视频 欧美日韩一区| 无码H动漫精品免费播放| 人人爽久久涩噜噜噜婷婷| 美女脱光免费网站| 久久资源久久人妻| 欧美人妻操大逼| 少妇的丰满3中文字幕| 天天综合网久久综合免费人成 | 男女嘿咻嘿咻动态图片| 色av中文字幕| 999欧美精品一区二区三区| 日本一区二区三区在线观看视频| 高清国产熟女| 久久精品国产亚洲av亚洲| 永久视频美女观看| 国产综合野战| 十分钟在线观看免费观看完整| 中文字幕在线观看巨乳| 日韩免费高清中文字幕av| 亚洲最大的人成网站| 日日噜噜噜夜夜爽爽狠狠同性男| 成人女人毛片免费| 三级久久久久久一精品| 99久久综合狠狠| 亚洲av免费视一区| 床戏被 乳液 白人极品少妇XXXⅩ做受 | 亚洲日本乱码中文字幕| 国产偷国产偷亚洲高清日韩| 狠狠久av北条麻妃xxx| 香蕉视频一区二区三区| 国产日韩+欧美| 亚洲人成影院一区二区三区| 中文字幕一区二区三区日韩欧美| 亚洲乱码av中文| 区二区三美女| 亚洲精品 在线观看 | 毛片在线观看黄| 成人特级黄色片久久久久久久| 中文字幕视频网址| 国产尿女 喷潮MP3| 亚洲成人网av| 亚洲免费中文av| 国产亚洲精品乱码久久久久久| 狼友AV永久网站免费观看| 白丝粉嫩小仙女自慰网站| 欧美黑人三区| 亚洲成人av电影在线观看网址| 国产午夜激无码AV毛片不卡| 婷婷国产精品久久久久久人妻| 亚洲熟女激情| 熟女人妻少妇精品视频一区二区| 美足脚交国产在线观看| 亚洲成人有码一区| 精品视频国内精品视频| 国产毛片一区二区三区毛片| 久久精品免视看国产成人| 三级大全国产精品风险| 乳奶水50部在线观看| 噗嗤噗嗤太深了啊快停下| 亚洲熟妇熟女久久| 久久久不卡国产精品| 中日韩精品一区二区有码| _区二区三区影院| 3344成人在线免费视频| 中文天堂在线三区| 国产精品久久久久夜夜嗨| 精品国产自产拍在线观看| 啊!摁摁~啊!用力~快点视频| 久久免费三级老司机| 国产午夜精品三区| 成人女人毛片免费| 亚洲最大成人av| 亚洲嫩草研究院在线观看| 久久爽国产熟妇熟女| 高清欧洲美女在线视频| 国产A√无码专区亚洲| 久久99精品久久久久久婷婷| 国产精品综合av一区二区不卡 | 中文人妻精品一区二区三区四区| 午夜更新视频在线观看免费国产| 色五月丁香六月欧美综合| 成人区人妻精品一区二欧美| 亚洲欧美日韩一级精品| 护士你夹真紧水又多| 精品伦精品一区二区三区| 中文字幕在线观看有码| 国产三级国产三级国产三级| 国产精品久久久久久av下载软件| 青禾男高高清在线| 噗嗤噗嗤啊太深太粗视频| 波多野结衣高清heyzo| 久久久精品人妻一区二区三区四| 日日夜夜福利视频| 大香蕉久久av| 中国老女人XXHD| 色丁香开心五月| 中文字幕人妻熟女日韩精品 | 亚洲另类激情专区小说图片| 国产成人强伦免费视频网站| 妖精视频在线视频一区二区三区| 被男狂揉吃奶胸60分钟视频| 1024手机看片你懂得国产| 欧美变态另类Z0Z0禽交| 97人妻熟女视频精品| 超黄超污超爽无遮挡网站| 日日操夜夜撸| 人妻中文制服中文| 极品白嫩的小少妇| 色av色婷婷91人久久久| 午夜www久久久| 免费日韩av影视网站| 天天摸日日夜夜摸| 成人欧美精品一区二区三区| 久久精品久久久久久噜噜老黄| 女教师2电影在线观看| 欧美日韩国产高清一级片| 蜜臀久久精品免费观看| 中日韩精品一区二区有码| 国产乱来视频区| www.青青草原在线| 久久狼人国产精品| 国产午夜精品电影院| 男女真人后进式猛视频| av性生免费大片| 久久精品超碰国产酒店| 黄色软件免费下载观看| 台湾中文娱乐网| 国产精品亚洲综合系列| 在线成人国产av| 亚洲熟女av视频多毛| 一区二区人妻中文| 国产精品久久草| 日本午夜电影区一区| 国产又大又长又粗又爽视频| 99久久国产综合免费精品| 日韩精品国产高清在线观看| 狠狠躁夜夜躁人人爽天天开心婷婷| 狠狠色丁香婷婷综合影院| a毛片基地| 日本欧美亚洲另类在线观看| 一级a做片性视频免费观看| 国产福利视频在线观看精品| 久久久久性生活免费视频| 国产色在线导航| 亚洲日韩中文字幕无码专区| 精品三级国产免费| 精品亚洲午夜久久久久| 凸凹人妻人人澡人人添| 欧美日韩亚洲国产一区| 国产一级特黄高清在线大片| 国产精品久久久天天影视香蕉| 97夜夜摸夜夜爽夜夜喊| 老湿机免费体检区无需下载| 一级毛片黄色免费看| 久久伊人蜜桃| 男女午夜性视频| 精品熟女一区| 秋霞av在线观看| 丰满人妻中伦妇伦精| 成年美女毛片免费看| 成人性生交c片免费看| 麻豆成人短视频在线观看| 日本瑟瑟视频网站| 成人av精品麻豆| 免费午夜爱爱视频| 久久久久久亚洲精品久久久 | 免费一级做a爰片久久毛片无遮挡| 欧美淫根插插插一区二区三区| 久久老司机午夜福利| 成人无码www免费男男| 1024手机看片你懂得国产| 日本奶水m||ksex| 亚洲国产视频一线| 2020国产精品久久久久精品| 亚洲免费视频999| 国产精品久久久久久,| 国产精品福利一区二区在线观看| 一区二区三区毛片免费| 丰满少妇A级毛片| 国内毛片毛片毛片毛片毛片| 国产在线观看av一区二区三区| 100部免费a级毛片| 亚洲国产精品8x| 宅男噜噜99国产精品观看免费| 一二三四社区在线视频观看| 亚洲伦视频在线观看| 秋霞午夜久久一区三区| 男人扎进女人下边视频| 午夜三级精品一区二区| 日韩欧美国产视频一区| 在线观看亚洲涩| 国产aⅴ亚洲aⅴ欧州av| 寡妇一边摸一边爽一边叫床| 美女视频黄频大全免费的| 老司机性色福利精品视频| 欧美性猛交ⅹxxx乱大交a| 亚洲老熟女在线观看| 成人av在线播放一区| 国产精品欧美国产三级| 日本淫妇xxww| 欧美,日韩,国产精品一二区| 大香蕉久久一区二区三区| 一区二区三区毛片免费大全| 99精品久久久久久久另类| 男人大片在线观看| 国产精品一区二区三区导航| 黄频视频美女在线| 这里只有精品久久久久久| 亚洲av天堂久久精品| 黑人强伦姧人妻日韩| 国产人妻高清国产拍精品| 狠狠久av北条麻妃xxx| 综合国产亚洲精品a在线观看| 男人扒开女人添下部免费视频| 久久国产乱子伦精品免费女| 久久精品麻豆国产| 久久久九视频精品| 婷婷六月亚洲中文字幕| 24小时日韩一区二区三区免费视频| 精品成人在线观看av| 亚洲日本乱码高清中字幕| 热re99久久精品国产66热6| 女同亚洲一区二区无线码 | av中文字幕制服丝袜| 蜜臀久久99精品久久久酒| 99RE6热视频这里只精品首页 | 国产尤物蜜臀av| 大屁股XXXXX日本大屁股| 国产又大又黄又粗又爽小说| 一区二区三区欧美激情视频| 亚洲大片av一区| 久久精品国产亚洲av毛片| 天天狠天天透天干天天怕处| 国产精品久久久国产精品| 天堂国产av| 亚洲国产第一精品女仆天堂| 中文字幕天天躁日日躁狠狠躁论坛| 久久国产精品欧美熟| 国产亚洲精品一区999| 两性午夜刺激免费视频| 久久久精品区二区三区| 亚洲av无码成人精品区| 久久精品国产亚洲无套av麻豆| 欧美成人卡一2卡3卡4卡无卡| 日韩欧美国产视频一区| 亚洲成人av片免费看| 国产精品久久久av美女十八| 午夜无遮挡免费视频| а_天堂中文最新版地址在线观看| 日日夜夜躁躁| 中文字幕av一区乱码| 国产成人最新三级在线视频| 久久一级片电影| 久久精品欧美日韩| 女人18毛片免费a级毛片| 又黄又爽又无遮挡免费网站| 欧美日韩一码二码三区四区| 欧美精品不卡一区二区三区| 久久精品国产亚洲av麻豆秋霞 | 在线观看91精品国产麻豆蜜桃| 麻豆一区人妻| 又粗又硬又长又爽又黄的视频| 在线观看亚洲无人码| 看久久久久久a级毛片就| 国产精品国产三级a| 国产精品不卡一区二区三区av| A级情欲片在线看BD| 国产91对白叫床清晰播放| 国产一区二区三区精品小说| 高潮绝顶抽搐大叫| 欧美国产精品麻豆成人av图片 | 男女黄色视频在线观看网站| av不卡免费在线看| 久草视频一二三| 公交车上人妻被涂春药| √天堂中文资源最新版| 日韩中文字幕在线一区| 991国产精品影院| 免费午夜福利啪啪| 亚洲成AV人片不卡无码可缓存| 免费观看精品国产| 久久久国产精品麻豆| 毛片免费网站有哪些| 阿娇被陈冠希亲下面无遮挡| 国产 欧美 一区 日韩| 免费的av天码人妻天堂| 国产视频精品免费观看| 天堂av成人网手机版| 国产精品亚洲av| 日韩人妻精品av在线| 香蕉频蕉亚洲第一| 粗大的内捧猛烈进出少妇视频| 日韩毛片免费无码无毒视频观看| 中文字幕av蜜桃| 日日碰狠狠躁久久躁| 成人国产av麻豆| 人妖高潮A片免费视频| 2021精品一区二区三区| 香蕉久久成人国产精品| 欧美另类亚洲清纯唯美| 精品久久久久久国产里采| 无码码男男作爱A片在线观看| 国内精品在线免费视频| 国产国语露脸对白视频| 欧美精品一区二卡三卡四卡| 黄片免费视频的.| 有码中文字幕在线| 四虎永久在线精品视频| 国产69精品久久久久男男系列| 亚洲成人a级片| 第一页亚洲精品| 国产一级精品午夜视频| 久久婷婷国产麻豆91天堂| 国产毛片一区二区三区高清 | 老司机免费成人影院| 欧美亚洲一级中文字幕| 日本免费一区二区三区伊甸园| 久久亚洲亚洲av| 人妻少妇久久中文字幕大全| 最好看的中文字幕久久| 国产一级一国产一级毛片| 少妇人妻偷人激情| 亚洲国产男同同性VIDEOS| 亚洲av久久久久久久久| 少妇av影片| 成年人可以看的黄片| 国产av福利久久| av天综合av亚洲| 一本色道久久高清精品网站| 韩国免费A级作爱片在线观看| 久久爱一区二区三区三州| 99亚洲av精品久| 亚洲18禁久久av| 性色av人人爽网站av| 日本精品一区二区三区免费观看| 看18一级毛片| 男女乱婬真视频全过程播放| 黄片a在线播放| 国产成人精品在线影院| 女同毛片免费播放| 国产毛片啊久久久久| 久久精品免视看国产成人| 啊av影片在线| 免费在线看黄色的网站 | 国产精品久久福利网站| 麻酥酥自慰多次喷水25分钟| 啪啪动图边摸边吃奶做爽动态 | 黑森林精选AV导航| 秋霞av午夜| 大屁股熟女白浆一区二区| 国产99在线 亚洲| 久久精品国产99久久久香蕉| 免费av片在线播放| 国产精品久久久久久99| 国产激情久久久网站| 超级碰碰人妻中文字幕| 麻酥酥自慰多次喷水25分钟| 波多野精品一区二区三区色情| 亚洲中文字幕免费在线播放| 亚洲男同志GAY片可播放| 国产福利91精品一区二区三区四区| 舔丝袜美脚网站| 亚洲av伊人久久综合蜜臀| 亚洲熟妇大图综合色区| 久久麻豆精亚洲av品国产二区| 精品国产福利导航| 国产边摸边吃奶边做爰视频| 99国产精品久久久久久久成人熟| 欧美亚洲综合成人网| 国产亚洲精品一区999| 国产乱老熟老熟女| √8天堂中文资源在线| 两个人韩国免费完整| 女人脱裤子让男生桶| 亚洲久久精品中文字幕| 一本色道久久亚洲热精品| 国产精品一区二区国产馆蜜桃软件| 每日更新在线观看av_手机| 亚洲欧美另类综合久久| 内射白嫩丰满的少妇| 香蕉精品视频网址| 日韩欧美一区二区三区国产| 真实国产露脸乱| 亚洲国产男人的天堂| 国产精品小姐久久久久久| 欧美精品一区二区,| 久久久久久久久av免费| 亚洲熟女av视频多毛| 久久热这里只精品99| 死亡之雪1国语版免费观看| 日韩高清av免费在线观看| 野外国产精品久久免费9|久久| 久久av中文1区| 久久午夜夜伦鲁鲁片免费无码| 亚欧洲精品在线视频免费观看| 奇米影视7777久久精品人人| 在线观看亚洲a| 国产精品一区二区三区别| 成人女人免费毛片视频| 成人二区免费视频| 116美女写真| 亚洲国产精品自在线一区二区| 成人女人毛片免费| 国产精品久久久久久麻辣| 麻豆AV无码精品一区二区| 粗大的内捧猛烈进出小视频| 凹凸精品熟女| 国产精品国产三级国产在线| av男人天堂精品久久| 精品国产一区二区三区av网站| 亚洲精品人人夜夜天天| 黄色美女网址在线观看| 欧美亚洲欧美一区二区三区四区| 精品夜夜久久久| 色琪琪久久草| 精品国产亚洲一区二区三区在| 一区欧美日韩国产| 99热这里只有是精品50| 搡老熟女老熟妇偷拍| 久久精品a一国产成人免费网站| 中文字幕密臀av首页熟女人妻 | 天天噜日日噜综合视频| 熟女一区二区三区国产| 中文字幕人妻电影在线| 国产精品18久久久久久人软件| 男人女人午夜小视频| 欧美狂野性生活| 亚洲免费av观看网址| 三级黄绝毛片| 精品动漫av亚洲av| 春药刺激国产老富婆露脸| 他扒开我奶罩吸我奶头变大了 | 九九久久精品影院| www.一级毛片在线播放放| 韩国伦理电影最美女| 人妖chinesecdts在线| 欧美裸体XXXX377P欧洲日本亚洲大胆 | 久久亚洲精品色一区| 国产一区在线高清| 亚洲影院一区二区三| 美女视频黄频大全免费的| 福利影院欧美第一页| 黄色视频日本午夜| 亚洲午夜精品一区二区三区免费视频 | AⅤ亚洲AV天堂波多野吉衣| 99久久精品久久免费观看不卡素人 | 永久免费黄色视频点进去就能看| 国产麻豆剧传媒精品国产av蜜桃 | 日韩1区二区视频| 波多野结衣乱码中文字幕| 日韩高清在线第一页| 亚洲精品美女黄片| 老司机亚洲福利视频| 国产成人18黄网站免费观看| av电影网站在线| 久在线精品视频线观看| 国模娜娜大胆劈腿自慰| 丝袜美腿一区二区三区| 国内精品视频自在欧美一区| 国产亚洲精品久久精品60www| 日韩欧美三级三区| 日日躁夜夜躁久久| 国产打野战在线播放| 亚洲av成人一区二区三区观看在线| 男女下面进入的视频免费午夜| 亚洲视频在线观看视频在线观看| 99热这里只有的是精品| 福利午夜精品电影| 精品熟女少妇八av免费久了| av天堂资源中文在线| 亚洲av综合色区一区二区三区| 亚洲AV永久综合在线观看红杏| 亚洲v欧美v国产v清高| 亚洲AV无码国产在丝袜线观看| 亚洲精品国产福利一区二区三区| 国产精品一区二区免费欧美| 亚洲一区一区av| 久久久久国产精品嫩草影院| 强壮的公么征服我让我高潮| 国产乱码精品一区二区三区粉嫩| 男人女人激情视频网站| 久久午夜福利片| 黄色成人爽片| 亚洲欧美偷拍精品一区二区| 亚洲中文字幕无码爆乳| 69日本人XXXX学生| 人妻AV中文系列先锋影音| 非洲一级黑寡妇毛片| 国产午夜精品久久久久久| 亚洲另类日韩av| 蜜桃av在线网址| 很黄很黄的女同性A片| 亚洲av大片在线播放| 丰满人妻av一区二区三区| 久久久久久久久精品精品| 99久久精品国产网站| 亚洲欧美日韩国产jizz| 黄色视频无遮挡在线免费观看| www.少妇熟女.com| 一本一本久久a久久精品综合妖精| a级毛片三级毛片免费视频观看| 99热这里只有精品久草| 国产成人一卡2卡3卡4卡精品 | 国产精品三级av欧美| 国产精品乱人伦一区2区| 美女露100%奶头18禁| 国内精品一区二区三区c毛片)| 乱人伦精品在线观看| 中文字幕乱码在线人妻av一区二区 | 久在线视频精品| 最近2019中文字幕免费视频大全| 人妻无码AV中文系列久久第一页| 99久久婷婷国产精品联想比结伴 | 91久久丝袜国产露脸| 伊人久久大香线蕉AV五月天| 国产乱码精品一区二区三下载| 中文字幕视频网址| av制服丝袜诱惑天堂| 最近中文字幕2019国语3| 疯狂做受DVD播放免费| 久久久久性生活免费视频| 久久精品人妻少妇| 亚洲精品蜜臀av在线一区| 无遮挡啪啪摇乳动态图| 女性自慰网站免费观看W| 久久亚洲国产成人精品v| 亚洲岛国av天堂| 女被啪到深处喷水GIF动态图| 日本激情电影一区二区| 欧美日韩亚洲风情国产精品 | 亚洲妇女自偷自偷图片| AV免费观看| 91影院午夜福利| 亚洲美女久久 久| 亚洲色噜噜网站在线观看| 漂亮人妻被同事疯狂玩弄| 91午夜精品亚洲一区二区三区| 亚洲精品国产婷婷久久| 久久精品影院免费观看| 免费观看深夜女人嗷嗷叫av| 青青草原涩综合| 国产成A人片在线观看视频| 国产三级av大全| 久久一区二区亚洲精品| 给我找个黄色片| 亚洲成人网av| 国产美女午夜福利| 精品国产乱码一区二区三区蝌蚪| 日韩av在线播放大片| 亚洲五月色婷婷综合开心网| 欧美日韩一区二区三区在线观看 | 特黄特大黄色片| 亚洲精品国产电影| 人人揉人人妻人人澡视频| 人妻内射三区| 18女下面流水不遮图免费图| 香蕉视频色版下载完整| 久久日韩精品一区二区| 一边摸一边添下面动态图| 自拍视频亚洲精品在线| 美女视频黄免费看| 亚洲国产成人精品福利| 老鸭窝在线视频免费观看网站| 国产精品久久久久一区二区三区密 | 国产成_人_综合_亚洲_国产| 婷婷av国产精品欧美毛片| 久久久久了精品久久久18| 玉蒲团之性奴完整3| 五码一区二区三区| 亚洲美女久久 久| 免费无码又爽又刺激高潮虎虎视频 | 国产又粗又猛又爽的视频| 日韩亚洲国产| 国产精品久久久久久超碰| 国产精品人妻熟女av久久网址| 久久精品国产专区| 99久久精品这里只有精品| 日韩欧美亚洲一区二区| 亚洲天堂电影av| 亚洲欧美日韩成人综合网| 天天日夜夜干日日爽| 久草网站在线观看| 美女脱18以下禁止看尿口网站| 亚洲十八岁女人毛片水多| 日韩一级a毛大片在线| 久久人人97超碰| 国产人人人爽爽| 亚洲天堂网最新版| 99热6这里只有精品| 国产乱码精品一区二区三区蜜臀| 国产区精品福利区| 亚洲精品久久中文字幕久久| 亚洲男人堂色偷偷一区| 精品久久久久久电影网| 99热这里只有精品高清| 午夜黄大色黄大片美女| 特黄三级毛片在线观看| 很黄很黄的女同性A片| av女优亚洲男人天堂| 很黄的毛片在线观看| 黄色免费av| 国产精品三级精品三级在线观看| JIZZJIZZ日本护士高清| 高清毛片免费观看视频网站| 忘忧草日本高清| 精品少妇人妻av免费麻豆 | 欧美日韩一区二区三区在线观看 | 在线观看亚洲无人码| 精品人妻一区二区三区视频免费| 无码国产福利AV私拍| 性欧美videofree高清极品| 亚洲欧美韩国视频在线观看| 欧美成人免费全部网站| 在线观看免费国产黄片啊啊啊受不了了| 熟女熟妇久久亚洲精品| 一级a爱片免费观看的视频 | 国产精品,一区二区三电影| 十三以下岁女子毛片| 午夜精品久久久久久av影视| 美女视频黄频大全aaa| 午夜福利 老司机 在线视频 一区 96热久久这里只有精品 | 国产一区二区三区在线观看免费| 亚洲欧洲日产国产综合| 91亚洲国产a∨精品一区二区| 高级会所人妻互换| 日韩精品有码人妻一区| 亚洲综合色区另类小说| 国产成人精品熟女77免费观看| 有希望的男人电影完整在线观看| 免费无码中文字幕A级毛片| 毛片av免费| 最新69国产成人精品3p人妻| 99re66久久在热青草| 国内老熟妇VIDEO| 精品日韩一区二区三区免费视频| 欧美a级在线现免费观看| 99久久国产精精品| 日韩有码 中文字幕 第一| 贝肖特免费观看完整视频| 国产精品50岁老女人| 欧美日韩在线播放网址| 亚洲国产精品自在线一区二区| 12周岁女全身裸啪啪自慰网站| 日本欧美国产在线播放| 日本欧美在线视频观看97| 亚洲成人午夜福利电影| 在线精品福利观看| 少妇裸体xxxxxx视频| 亚洲av在线观看电影| 久久这里只有精品亚洲| 人妻电影久久| 24小时日韩一区二区三区免费视频 | 69久久成人精品| 久久精品国产99精品,亚洲| 亚洲97色婷婷| 中美日韩印度亚洲综合在线| 国产精品不卡视频一区二区| 日韩精品国产自在欧美| 99久久亚洲精品蜜臀| 18女下面流水不遮图免费图| 日韩精品一区二区三区人人妻| 四虎永久在线精品视频免费| 色播亚洲综合网| 日本熟老少妇XXXXX| 国产亚洲中文日本不卡二区| 最大胆裸体人体牲交免费| 中文有码人妻制服| 亚洲综合区国产| 国产伦精品一区二区三区视免费 | 精品人人妻人人澡人人爽牛牛| 国产av大香蕉| 男女猛烈无遮掩视频免费| 亚洲成人一二三区av| 野花社区在线观看免费直播 | 久久精品国产综合久久久| 亚洲欧美高清一区二区三区| 久久精品国产自在天天线| 夫妇交换性4中文字幕| 男人和妻子电影免费观看| 黄 色 网 站 成 人在线| 欧美人与性动交α欧美| 国产成人综合亚洲精品第一| 久久精品 国产99| 久久99久久99精品免费看小说| 日韩人妻免费一区二区三区| 国内毛片毛片毛片毛片毛片| 毛片视频免费播放器免费播放| 88av国产精品| 国产成人精品免费视频大全| 黑人一区二区三区xxxx| 不该看的男女网站视频免费 | 伊人久久电影网站| 女女同性AV片在线观看免费| 亚洲成人久久一区二区| 免费人成视频在线观看免费| 久久人人爽久久人人爽av| 久久区一区二区三区影院| 亚洲色久悠悠AV在线| 国产免费精品一区二区三区| 亚洲av观看在线| 黑人欧美一区二区三区4po| 日韩精品午夜视频一区二区三区| 夹看学长的巨大写作业| 欧美猛交乱大交| 国产成人+综合+亚洲欧美| 女人抽搐喷水娇喘视频| 久久免费精品,| 国产成人无码免费视频97| 日韩成人黄色三级| 国产精品亚洲大片| 精品久久久大香蕉| 欧美国产精品一级二级三级| 男男chinese男男资源| av电影网站在线| www成年人毛片| 精品国产999久久久免费| 亚洲天堂网av网站| 爱爱aaa噜噜| 日韩精品在线播放日韩| 亚洲中文字幕久久精品色老板| 日韩一区二区免视| 亚洲精品日韩伦理电影在线观看| 久久久久久网站精品免费| 无码黄动漫在线观看| 免费看成年人的黄片| 成年女性免费观看视频| 日本大胆人gogo露私艺术影| 亚洲欧美日韩久久精| 2020女厕偷拍25名美女| 码高清av一区二区| 国产高清啪免费视频| 交换配乱吟粗大农村大坑性事| 69老司机精品福利视频| 欧美黑人三区| 亚洲AV性色在线观看| 久久精品国产亚洲av麻豆天堂| 国产性猛交xxxx乱大| 免费黄片精品99在线观看| 国产欧美精品一区电影在线| av看片免费不卡| 美女扒了内裤让男人桶| 人人妻人人爽人人黑| 亚洲黄色美女视频网站| 少妇被粗大的猛进出| 三级韩国免费观看| 国产欧美日韩中出| 少妇群交换BD高清国语版| 少妇人妻偷人激情| 国产精品一线二线三| 中文字幕在线亚洲二区| 精品久久精品色综合| 日韩欧美亚洲区| 99久久亚洲精品日| 麻豆91久久| 十八禁人妻一区二区| 91在线电影免费观看| 亚洲日本乱码高清中字幕| 成人国产麻豆网| 蜜臀av国产尤物一区| 亚洲xxx久久| 特级黄色视频全免费| 久久久亚洲精品免费| 日本熟妇色XXXXX日本老妇| 精品亚洲成av人在观看| 麻豆国产精品久久久久久| 亚洲成人av高清在线观看| 国产精品久久187av| 男女啪啪激烈动态图| 国模国产精品嫩模大尺度视频| 老师破女学生处特级毛片| 免费av亚洲电影| 成人女人久久电影| 美女隐私羞羞视频在线观看| 黄网站色视频免费毛片| 5566中文字幕在线观看| 97精品人人妻人人| 天天日夜夜操天天干| 欧美日韩精品视频一区二区三区_久灬| 日本一本二本三区高清资源 | 日韩美免费一区二区视频| 欧美美女三级在线| 美女露胸无遮挡动漫| 日韩欧美国产一区啊| 别揉我奶头~嗯~啊~动态视频 | 亚洲国产一区二区欧美国产一区二区三区| 大量国产私密保健视频| 免费A级毛片无码A∨蜜芽| 国产女人视频在线观看网页| 欧美性猛交xxxx乱大交3一| 欧美人与禽ZOZ0性伦交| 蜜芽国产尤物AV尤物在线看| 欧美精品一区二区三区四区五区高 | 偷拍粉嫩25位美女厕所| 欧美福利电影A在线播放 | 精品国产亚洲一区观看| 国产日韩欧美专区一区| AV片亚洲国产男人的天堂| 国产精品一区在线观看0 | 92午夜福利合集1000在线线看| 91老司机精品| 人妻av中文字幕一区二区| 曰曰摸夜夜添夜夜添高潮出水| 亚洲国产成人精品av片| 99亚洲欧美国产另类在线| av日韩在线不卡| 成人av毛片免费观看| 日韩精品国产高清在线观看| 欧美亚洲精品综合国产| 一级a爱做片免费观看国产| 99久久夜色精品国产亚洲一区| 欧美日韩国产高清在线观看| 曰本A级毛片无卡免费视频VA| 亚洲高清字幕| 国内精品伊人影院| 国产午夜真人理论片| 日本系列有码字幕中文字幕| 两根粗大一前一后好深| 成人亚洲1区二区| 国产aⅴ欧洲av| 久久精品国产三级伦理电影| 日本少妇寂寞少妇AAA| 她稚嫩哭喊撕裂第一次| 精品国产乱码一区二区三区蝌蚪| 国产一区二区三区免费在线播放| 午夜看片理论| 中文字幕日韩综合亚洲乱码| 口述一次疯狂刺激的交换经历| 日射香蕉爱爱av| 日韩在线高清大片| 国产伦一区二区三区精品视频| 少妇内射深夜福利| 老鸭窝黄色视频在线观看免费| 欧美老肥婆牲交VIDEOS| 阴道口痒并且分秘物呈黄色| av在线日韩| 汤姆久久久久久久影院中文字幕| 久久九九99这里只有精品| 天堂久久亚洲精品| 中国JAPANESE高潮尖叫| 亚洲精品天堂av在线| 在线观看的亚洲av| 噜噜吧色噜噜| 欧美黑人最猛性xxxxx爽| 性色av一区二区三区| 国产成人剧情AV麻豆映画| 4399韩国电影免费观看| 成人av亚洲一区二区三区| 欧美日韩国产a v| 国产一级二级三级女| 亚洲av熟女| 一区二区激情视频| 亚洲成a人片8888一在线观看| 久久青草精品38国产| 无码午夜福利片在线观看| 国产精品久久久久精品三级不卡| 亚洲中文字幕久久乱码| 国产偷国产偷亚洲高清老太97| 欧美成人爱爱网| 特别特别的黄的免费大片视频| 国产视频午夜福利| 别揉我奶头嗯啊~别进去视频| 亚洲av日韩综合一区久内射| 免费成av人片| 91香蕉在线精品视频| 日韩在线高清大片| 欧美性猛交xxxx乱大交m| 97欧美精品一区二区三区| 亚洲av久久久久久久| 一二三区人妻| 国产精品嫩草影院99a| 乳女教师欲乱动漫无修版| 婴儿边吃奶边睡觉| 鸡蛋黄红色好还是黄色好| 午夜无遮挡在线免费观看| 亚洲中文字幕乱码熟女一区| .夜夜久久久久| 人人妻人人澡人人爽xxx| 国产成人精品久久久久白嫩| 国产毛片一区二区三区bd| 尤物在线播放不卡av| 四虎久久精品国产亚洲av| 美女裸体黄网站18禁免费看 | xxx日本一二三区不卡| JUL-672美人妻神宫秘书 | 日韩一区三区二区最新视频| 精品一区二区不卡视频| 色欧美欧视频在线观看| 亚洲无线卡一卡二| 丰满白嫩大屁股ASS| 亚洲青青草国产| 97精品国产一区二区三区四| 欧美成人激情免费| 大香蕉av在线| 国产野战直播| 亚洲国产欧美av| 永久免费av网站大全| 99热这里只有精品2018| 91精品国产综合久久99精品| 国产成人精品三级麻豆| 国产91精品mp4| 小sao货cao得你舒服么视| 91成人性生交大片免费看| 一区二区欧美亚洲成人| 亚洲国产精品8x| 在线看免费的黄色大片| 7777精品久久久久久| 在线免费av网站观看| 综合一区欧美亚洲精品| 亚洲天堂免费精品| tobu8在线观看免费直播| 国产明星裸体XXXX视频| 午夜男女大片免费观看18禁片| 国产成人精品一区二区免费| 亚洲国产麻豆精品系列| av午夜福利片| 最新精品福利视频| 亚洲精品一区二区影院| 超级碰97大香蕉| 日韩www在线免费观看| 91精品老鸭窝在线观看| 欧美在线一区二区三区四| 色免费视频网站| 日韩成人在线影片| _级黄色大片| 老司机日韩新片网| 亚洲国产精品久久久久久99| 国内精品一线二线三线区视频| 国产亚洲欧美丝袜| 国产精品一区在线观看0 | 欧美成人免费一区二区三区四区| 18以下岁禁止1000部免费| 亚洲av色婷婷精品久久| 中国毛茸茸BBXX| 无码AⅤ免费中文字幕久久| 被十几个男人扒开腿猛戳| 99久久久国产露脸精品| 国产美女A片免费看| 在线播放网站亚洲| 欧美亚洲国产大片| 成人黄色视频网站有哪些| 久久丝袜视频网站| 中黄油漆配什么颜色好看| 亚洲av免费黄片| 精品人妻av一级毛片免费| 日日淫天天色人人妻| 50国产熟女69av| 午夜福利视频精品| 国产精品久久久久一区二区三区密| 国产精品一区二区三区免费观看| 亚洲天堂av.| 午夜一区二区三区在线看| 日日夜夜精品视频天天看| 午夜久久精品av| 久久成人网精品| 888人360体大胆中国人体| 露脸经典50岁的老熟女| 国产亚洲欧美日韩在线三区| 在线观看国产精品福利片| 人妻三级日本香港三级极97| 亚洲免费av电影院| 一本久久精品一区二区| 内射嗷嗷叫视频| 少妇超爽一区二区三区| 精品久久久久久久久久免费视频| 怡红院亚洲| 亚洲成a人片在线观看视频| 小黄片下载免费观看视频| 亚洲午夜精品久久免费影院| 欧美日韩亚洲国产| furry巨大粗爽gay动漫| 日本无遮羞肉体动漫在线观看| XXXXX无尽的毛茸茸撒尿| 综合激情丁香久久狠狠| 国产一级毛片一区二区三区精品| av最新版在线| 欧美最猛性开放2OVIDEOS| 性xxxxx大片免费视频| 国产毛片精品一区二区三区| av黄色免费| 亚洲av.av天堂| 久久久久久久久久久精品区少妇| 中文字幕在线乱码亚洲人成| 久久亚洲国产中文精品| 十八欧美乱大交| 18日本学生无套高潮片| 在线免费av网站观看| 真人激情国产一区二区| 国产乱码一区二区三区乱码| 亚洲成人免av电影| 中文字幕日韩视频首页| 久久综合亚洲综合91精品国| 成人在线亚洲电影av| 国产午夜福利电影一区二区三区在线观看| 久久成人自影院精品99网站| 被各种玩具玩弄H| 男人精品视频在线观看| 欧美国产一区二区三区激情无套| 亚洲国产一区二区欧美国产一区二区三区 | 欧美日韩高清有码| 搡少妇在线视频少妇干活了| 久久精品国产成精品亚洲| 少妇水多无毛| 欧美日韩一区二区三区hd| 国产午夜真人理论片| av在线色网亚洲| 伊人久久综合热线大杳蕉岛国| 午夜亚洲国产理论片中文飘花| 天堂在线中文在线6| xxxxwww亚洲| 丰满熟妇乱又乱精品| 免费av大蜜桃| 高清日本熟女| YYYY111111少妇影院| 14萝自慰专用网站| 午夜无遮挡在线免费观看| 国产美女视频一区二区二三区| 欧美一级黄色免费视频| 久久人人精品爽视频| 日本动漫十八禁黄无遮挡吸乳 | 国产精品毛片v一区二区| 色94色在线观看| 高清日本熟女| 老司机午夜免费在线| 国产内射999视频在线| 久久人人做人人玩人妻精品| 中文精品久久久久国产国产成人精品 | 国产精品-色哟哟| 亚洲熟女毛片儿| 久操精品在线视频| 男女内射视频免费观看国产| 99久久精品视香蕉蕉| 日本精品久久久久久久一区二区| 永久免费福利视频| 亚洲国产一区二区免费在线| 国产又粗又硬又猛又爽又黄视频| 国产精品免费看久久久| 亚洲成年人网站在线观看| 92国产精品午夜免费福利视频| a级毛片网站无下载| 天津精品公寓式酒店| 成年18禁动漫在线看网站| 成人av一区二区在线| 中文字幕av熟女肥臀人妻| 婷婷av一区二区三区麻豆| 男生插进女生下面视频在线观看免费视频 | 亚洲国产成人久久精品一区| av不卡网站在线观看| 狠狠色噜噜狠狠狠狠97| 国产成人精品电影在线观看91 | 国产三级在线观看播放视频| 色婷婷久综合久久国产午夜精品| 999欧美精品一区二区三区| 看中国男人操女人逼视频| 亚洲黄片大全在线观看| 亚洲无线码高清在线观看| 少妇极品熟妇人妻| 好看的中文字幕最新中文字幕视频| 男女免费视频网站www| 精品午夜av| 国产精品嫩草影院123| 玖玖国产乱子伦精品免费女| 亚洲国产精品久久久久久久简单| 国产精品久久久av麻豆| 男人裸体自慰免费看网站| 久久99精品国产精品| 亚洲高清av一区二区三区网站| 亚洲中文乱码字幕| 午夜福利亚洲精选在线| 激情亚洲欧美激情| 国产无遮挡又黄又爽又大又色| 国内熟骚老妇| 手摸高潮喷水视频|