FUEL SYSTEM PRECAUTION


  1. IGNITION SWITCH EXPRESSIONS

    Tech Tips

    The type of ignition switch used on this model differs depending on specifications of the vehicle.

    The expressions listed in the table below are used in this section.

    Expression Ignition Switch (Position) Power Switch (Condition)
    Ignition switch off LOCK Off (Lock)
    Ignition switch ACC ACC On (ACC)
    Ignition switch ON (IG) ON (IG) On (IG)
    Ignition switch ON (READY) ON (READY) On (Ready)

  2. PRECAUTIONS


    1. Before inspecting and repairing the fuel system, disconnect the cable from the negative (-) auxiliary battery terminal.

      Note

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

    2. Perform the Discharge Fuel System Pressure procedure below before disconnecting a fuel line to prevent gasoline from spilling out.

    3. Keep gasoline away from rubber or leather parts.

  3. DISCHARGE FUEL SYSTEM PRESSURE

    CAUTION:


    • Perform the following procedure to prevent fuel from spilling out before removing any fuel system parts.

    • Pressure will still remain in the fuel lines even after performing the following procedure. When disconnecting a fuel line, cover it with a piece of cloth to prevent fuel from spraying or coming out.


    1. Remove the rear seat cushion cover with pad sub-assembly Click here.

    2. Remove the rear floor service hole cover.

    3. A004ETX

      Disconnect the connector from the fuel suction tube with pump and gauge assembly.

    4. Put the engine in inspection mode Click here.

    5. Start the engine.

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

    7. Crank the engine again and make sure that the engine does not start.

      Tech Tips

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

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

      Note

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

    9. Loosen the fuel tank cap, then discharge the pressure in the fuel tank completely.

    10. Connect the fuel pump connector.

    11. Install the rear floor service hole cover with new butyl tape.

    12. Install the rear seat cushion cover with pad sub-assembly Click here.

  4. FUEL SYSTEM


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


      1. Discharge the fuel system pressure.

      2. Disconnect the fuel tank main tube sub-assembly.

      3. Drain the fuel remaining inside the fuel tank main tube sub-assembly into a container.

      4. Cover the disconnected pipe and connector with plastic bags to prevent damage and contamination.

      5. Put a container under the connecting parts.

    2. Perform the following procedure when disconnecting the fuel tube connector (quick type A):


      1. A004GD6

        Remove the EFI fuel pipe clamp.

      2. Check whether there is any foreign matter on the fuel pipe around the fuel tube connector before disconnecting it and remove the foreign matter as necessary.

      3. A004FC1E09
        Text in Illustration
        *1 Retainer
        *2 Nylon Tube
        *3 Fuel Pipe
        *4 O-ring
        *5 Fuel Tube Connector
        A004F2L Pinch
        A004F32 Pull Out

        Pinch the retainer of the fuel tube connector, and then pull out the fuel tube connector to disconnect the fuel tube from the fuel pipe.

        Note

        Be sure to disconnect the fuel tube connector by hand.

      4. A004EH1

        If the fuel tube connector and the fuel pipe are stuck, push in and pull on the fuel tube connector to release it. Pull the fuel tube connector out of the fuel pipe carefully.

        Text in Illustration
        A004F2L Pull
        A004F32 Push

        Note

        Be sure to disconnect the fuel tube connector by hand.

      5. Check that there is no dirt or other foreign matter on the sealing surfaces of the disconnected fuel pipes. Clean the surfaces if necessary.

      6. Cover the disconnected fuel pipe and fuel tube connector with a plastic bag to prevent damage and contamination.

        Note

        Do not damage the pipe or fuel tube connector, and prevent entry of foreign matter.

    3. A004E5F

      Perform the following procedure when connecting a fuel tube connector (quick type A):

      Text in Illustration
      A004F2L Push

      1. Check if there is any damage or foreign matter on the connecting parts of the fuel pipes.

      2. Line up the 2 parts of the fuel pipes to be connected, and push them together until the fuel tube connector makes a "click" sound.

        Tech Tips

        If the fuel pipe is difficult to push into the fuel tube connector, apply a small amount of clean engine oil to the tip of the fuel pipe and reinsert it.

      3. A004GFI

        After connecting the fuel pipes, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

        Text in Illustration
        A004F32 Pull

      4. Inspect for fuel leaks Click here.

      5. Install the No. 1 fuel pipe clamp.

    4. A004FIIE04

      Perform the following procedure when disconnecting a fuel tube connector (quick type B):

      Text in Illustration
      *1 Retainer
      A004F2L Pull
      A004F32 Pull Out

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

      2. Pull the tabs of the retainer to disengage the lock claws and pull out the fuel tube connector from the fuel pipe.

        Note

        Be sure to disconnect the fuel tube connector by hand.

      3. A004GEK

        If the fuel tube connector and the fuel pipe are stuck, push in and pull on the fuel tube connector to release it. Pull the fuel tube connector out of the fuel pipe carefully.

        Text in Illustration
        A004F2L Pull
        A004F32 Push

        Note

        Be sure to disconnect the fuel tube connector by hand.

      4. Check that there is no dirt or other foreign matter on the sealing surfaces of the disconnected fuel pipes. Clean the surfaces if necessary.

      5. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    5. A004EP2E05
      Text in Illustration
      *1 Retainer
      A004F2L Push
      A004F32 Push

      Perform the following procedure when connecting the fuel tube connector (quick type B):


      1. Check if there is any damage or foreign matter on the connecting parts of the fuel pipes.

      2. Line up the pipe and connector and push them together until a "click" sound is heard. If the pipe is difficult to push into the connector, apply a small amount of clean engine oil to the tip of the pipe and reinsert it.

      3. After connecting the fuel pipes, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      4. Inspect for fuel leaks Click here.

  5. INJECTOR


    1. A004FXWE04
      Text in Illustration
      *1 Delivery pipe
      *2 O-ring
      *3 Injector Vibration Insulator

      Install the injector to the delivery pipe and the cylinder head as shown in the illustration.

      Note

      Before installing the injector, be sure to apply a light coat of gasoline or spindle oil where the delivery pipe contacts the injector O-ring.

    2. A004EI3E04
      Text in Illustration
      *1 O-ring
      *2 Delivery pipe
      *a CORRECT
      *b INCORRECT

      Observe the following precautions when removing and installing the fuel injector.


      1. Do not reuse the O-ring and insulator.

      2. When placing a new O-ring on the injector, do not damage the O-ring.

      3. Coat a new O-ring with spindle oil or gasoline before installing it.

        Note

        Do not use engine oil, gear oil or brake fluid.

  6. FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY


    1. A004FXJE02
      Text in Illustration
      *1 Tube

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

  7. INSPECT FOR FUEL LEAK


    1. Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs Click here.