FUEL SYSTEM PRECAUTION

Note

Before working on the fuel system, disconnect the cable from the auxiliary battery negative (-) terminal.

CAUTION:


  • Do not smoke or be near an open flame when working on the fuel system.

  • Keep gasoline away from rubber or leather parts.

  • Do not allow fuel to spray when removing the pipe between the high pressure side fuel pump and the fuel injector. The fuel in the pipe is highly pressurized.


  1. PRECAUTION

    Note

    After turning the power switch off, waiting time may be required before disconnecting the cable from the auxiliary battery negative (-) terminal. Therefore, make sure to read the disconnecting the cable from the auxiliary battery negative (-) terminal notices before proceeding with work Click here.

  2. DISCHARGE FUEL SYSTEM PRESSURE

    CAUTION:


    • Make sure the engine coolant temperature is 60°C (140°F) or less when performing this procedure.

    • Do not disconnect any part of the fuel system until you have discharged the fuel system pressure.

    • Even after discharging the fuel pressure, place a piece of cloth or equivalent over fittings as you separate them to reduce the risk of fuel spray on yourself or in the engine compartment.


    1. Remove the rear seat cushion assembly Click here.

    2. Remove the rear floor service hole cover.

    3. A000N9J

      Disconnect the fuel pump connector.

    4. Put the engine in inspection mode Click here.

    5. Start the engine. After the engine has stopped on its own, turn the power switch off.

      Tech Tips

      Some DTCs may be stored. Clear the DTCs before proceeding to the next step.

    6. Crank the engine again and check that the engine does not start.

    7. Loosen the fuel tank cap and discharge the pressure in the fuel tank completely.

    8. Disconnect the cable from the auxiliary battery negative (-) terminal.

      Note

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.

    9. Connect the fuel pump connector.

    10. Install the rear floor service hole cover.

    11. Install the rear seat cushion assembly Click here.

  3. FUEL SYSTEM


    1. When disconnecting a fuel pressure line, a large amount of gasoline will spill out. Perform the following procedure:


      1. Discharge the fuel system pressure.

      2. Put a container under the connection.

      3. Disconnect the fuel pump tube.

      4. Drain the fuel remaining inside the fuel pump tube into the container.

      5. Cover the disconnected pipe and connector with a plastic bag to prevent damage and contamination.

    2. Observe these precautions when disconnecting the fuel tube connector (for quick type A).


      1. A000QUNE21
        Text in Illustration
        *1 Fuel Hose Connector Cover

        Detach the lock claw by lifting up the fuel hose connector cover as shown in the illustration.

      2. Check for dirt or mud on the pipe and around the connector before disconnection. Clean if necessary.

      3. A000OLKE75

        Pinch the connector and disconnect the connector and pipe.

        Text in Illustration
        *1 Retainer
        B002B6O Pinch
        B002BBR Pull

        Tech Tips

        If the connector and pipe are stuck together, pinch the connector, and then push and pull the pipe to disconnect the pipe and pull it out.

        Note


        • A000O29E11

          Check for foreign matter in the pipe and around the connector. Clean if necessary. Foreign matter may damage the O-ring or cause leaks in the seal between the pipe and connector.

        • Do not use any tools to separate the pipe and connector.

        • Do not forcefully bend or twist the nylon tube.

        • Check for foreign matter on the pipe seal surface. Clean if necessary.

        • Put the pipe and connector ends in plastic bags to prevent damage and foreign matter contamination.

        • If the pipe and connector are stuck together, pinch the connector between your fingers and turn it carefully to disconnect it.

        Text in Illustration
        *1 Retainer
        *2 Nylon Tube
        *3 Pipe
        *4 O-Ring
        *5 Fuel Tube Connector

      4. Check for dirt or mud on the seal surface of the disconnected pipe. Clean if necessary.

      5. To protect the disconnected pipe and connector from damage and contamination, cover them with a plastic bag.

    3. Observe these precautions when connecting the fuel tube connector (quick type A).


      1. Check that there is no damage or contamination in the connecting part of the pipe.

      2. A000PHL

        Align the axis of the connector with the axis of the pipe. Push the pipe into the connector until the connector makes a "click" sound. If the connection is tight, apply a small amount of fresh spindle oil or gasoline to the tip of the pipe.

        Text in Illustration
        B002B6O Push

        Note


        • Before installing the tube connectors to the pipes, check if there is any damage or foreign matter in the connectors.

        • A000NJD

          After connecting the connectors and pipes, check if they are securely connected by trying to pull them apart.

        Text in Illustration
        B002B6O Pull

      3. Attach the lock claw to the connector by pushing down on the fuel hose connector cover.

      4. Check that there is no fuel leakage.

    4. Observe these precautions when disconnecting the fuel tube connector (for quick type B).


      1. Check that there is no damage or foreign matter on the part of the pipe that contacts the connector.

      2. A000NV7E01

        Detach the 2 claws of the connector retainer. Push down on the connector and disconnect it from the pipe.

        Text in Illustration
        *1 Retainer
        B002B6O Push
        B002BBR Down
        B002BRO Pull

        Tech Tips

        If the connector and pipe are stuck, pinch the fuel pipe by hand and push and pull the connector to disconnect it.

        A000T1L
        Text in Illustration
        B002B6O Pull
        B002BBR Push

        Note


        • A000OC8E17

          Check for any dirt and foreign matter contamination in the pipe and around the connector. Clean if necessary. Foreign matter may damage the O-ring or cause leaks in the seal between the pipe and connector.

        • Do not use any tools to separate the pipe and connector.

        • Do not allow any scratches or foreign matter on the parts when disconnecting them, as the fuel tube joint contains the O-rings that seal the plug.

        • Check for any dirt and foreign matter on the pipe seal surface. Clean if necessary.

        • Do not forcibly bend, twist or turn the nylon tube.

        • Protect the disconnected part by covering it with a plastic bag and tape after disconnecting the main tube.

        • If the pipe and connector are stuck together, pinch the tube between your fingers and turn it carefully to free it. Then disconnect the main tube.

        Text in Illustration
        *1 Pipe
        *2 Retainer
        *3 Nylon Tube
        *4 Connector
        *5 O-Ring

      3. Check for foreign matter on the seal surface of the disconnected pipe. Clean it if necessary.

      4. To protect the disconnected pipe and connector from damage and foreign matter, cover them with a plastic bag.

    5. Observe these precautions when connecting the fuel tube connector (for quick type B).


      1. Check for foreign matter on the pipe and around the connector before connecting it. Clean it if necessary.

      2. A000R4KE02
        Text in Illustration
        *1 Retainer
        B002B6O Up
        B002BBR Push

        Align the axis of the connector with the axis of the pipe. Push the pipe into the connector, and then push up on the retainer.

        Note


        • A000P84

          Before connecting the tube connectors to the pipes, check if there is any damage or foreign matter in the connectors.

        • After connecting the pipe and connector, check that the pipe and connector are securely connected by trying to pull them apart.

        Text in Illustration
        B002B6O Pull

    6. Observe the following precautions when disconnecting the fuel tube connector (for quick type C).


      1. Check for dirt or mud on the fuel tube connector and pipe before disconnection. Clean if necessary.

      2. A000QC7N01
        Text in Illustration
        *1 Retainer
        B002B6O Push
        B002BBR Pull up
        B002BRO Pull

        Pull the retainer up while pinching it on both sides by hand as shown in the illustration, and disconnect the fuel tube connector from the pipe.

        Note

        Do not use any tools.

      3. A000OAA

        If the fuel tube connector and pipe are stuck, pinch the fuel pipe by hand and push and pull the connector to disconnect it.

        Note

        Do not use any tools.

      4. Check for dirt or mud on the pipe seal after disconnecting the fuel tube. Clean it if necessary.

      5. Cover the disconnected fuel tube connector and pipe with a plastic bag.

        Note

        Do not allow the fuel tube connector or pipe to be damaged or contaminated by foreign matter.

    7. Observe the following precautions when connecting the fuel tube connector (for quick type C).


      1. A000MVTN01
        Text in Illustration
        *1 Retainer
        B002B6O Connect
        B002BBR Push down

        Align the shaft of the fuel tube connector with the shaft of the pipe, push the fuel tube connector in, and push down the retainer.

      2. A000P9P

        After connecting the fuel tube connector, check that the fuel tube connector and pipe are securely connected by trying to pull them apart.

  4. FUEL SUCTION WITH PUMP AND GAUGE TUBE ASSEMBLY


    1. A000PRA

      Do not disconnect the tube shown in the illustration when disassembling the fuel suction with pump and gauge tube assembly. Doing so will cause reassembly of the fuel suction with pump and gauge tube assembly to be impossible as the tube is welded to the plate.

  5. INSPECT FOR FUEL LEAK


    1. Check that there are no fuel leaks anywhere on the fuel system after performing maintenance Click here.