FUEL SYSTEM PRECAUTION


  1. IGNITION SWITCH EXPRESSIONS


    1. The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.

      Expression Ignition Switch (Position) Engine Switch (Condition)
      Ignition Switch off LOCK Off
      Ignition Switch ACC ACC On (ACC)
      Ignition Switch ON ON On (IG)
      Engine Start START Start

  2. PRECAUTIONS


    1. Before working on the fuel system, disconnect the cable from the negative battery terminal.

    2. Do not work on the fuel system near any open flames. Never smoke when working on this system.

    3. Keep rubber and leather parts away from gasoline.

  3. DISCHARGE FUEL SYSTEM PRESSURE

    CAUTION:


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

    • Even after discharging the fuel pressure, 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 assembly Click here.

    2. A005H5EE01
      Text in Illustration
      *1 Protective Tape

      Remove the rear floor service hole cover.

    3. A005H4M

      Disconnect the connector from the fuel pump assembly.

    4. Start the engine. After the engine stops naturally, turn the ignition switch off.

      Note

      Do not increase the engine speed or drive the vehicle while waiting for the engine to stop naturally.

      Tech Tips

      DTC P0171/25 (system too lean) may be set.

    5. Start the engine again and make sure that the engine does not start.

    6. Remove the fuel tank cap and discharge the pressure from the fuel tank.

    7. Disconnect the cable from the negative battery terminal.

    8. Connect the connector of the fuel pump assembly.

  4. FUEL SYSTEM


    1. When disconnecting the high-pressure fuel line, a large amount of gasoline will pour out. So take the following precautions.


      1. Discharge the fuel system pressure.

      2. Disconnect the fuel tube.

      3. A005KOQE01
        Text in Illustration
        *1 Plastic Bag

        Drain the fuel remaining inside the fuel pump tube.

      4. Cover the disconnected fuel tube connector and pipe with a vinyl bag to prevent damage and the intrusion of foreign matter.

    2. A005LYO

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


      1. Do not reuse the O-ring.

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

      3. Coat the new O-ring with grease or gasoline before installing it. Do not use engine, gear or brake oil.

    3. A005KWOE01
      Text in Illustration
      *1 O-Ring
      *2 Delivery Pipe
      *3 Insulator

      Install the injector into the delivery pipe and cylinder head, as shown in the illustration. Apply grease or gasoline to the contact surfaces of the delivery pipe and injector before installing the injector.

    4. A005IHS

      Observe these precautions when disconnecting the fuel tube connector (for Quick Type A):


      1. Remove the EFI fuel pipe clamp.

      2. Check whether there is any dirt in the pipe around the connector before disconnecting it and remove the dirt as necessary.

      3. A005ITAE35
        Text in Illustration
        *1 Retainer
        *2 O-ring
        A005GO2 Pinch
        A005IBX Pull

        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

        Do not use any tools.

      4. A005LDJ

        If the connector and pipe are stuck, pinch the retainer with your hand, and then push and pull the connector to disconnect them.

        Text in Illustration
        A005GO2 Pull
        A005IBX Push

        Note

        Do not use any tools.

      5. Check for dirt or other foreign matter on the parts to be disconnected and clean them if necessary.

      6. A005HY5E06
        Text in Illustration
        *1 Plastic Bag

        Protect the contact surface by covering it with a plastic bag.

        Note

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

    5. A005HS0

      Observe these precautions when disconnecting the fuel tube connector (for Quick Type B):


      1. Remove the No. 2 fuel pipe clamp.

      2. Check whether there is any dirt in the pipe around the connector before disconnecting it and remove the dirt as necessary.

      3. A005ITAE35
        Text in Illustration
        *1 Retainer
        *2 O-ring
        A005GO2 Pinch
        A005IBX Pull

        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

        Do not use any tools.

      4. A005LDJ

        If the connector and pipe are stuck, pinch the retainer with your hand, and then push and pull the connector to disconnect them.

        Text in Illustration
        A005GO2 Pull
        A005IBX Push

        Note

        Do not use any tools.

      5. Check for dirt or other foreign matter on the parts to be disconnected and clean them if necessary.

      6. A005HY5E06
        Text in Illustration
        *1 Plastic Bag

        Protect the contact surface by covering it with a plastic bag.

        Note

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

    6. A005HQH

      Observe the following precautions when connecting the fuel tube connector (for Quick Type A or B):

      Text in Illustration
      A005GO2 Push

      1. Check that there is no damage or foreign matter on the part of the pipe that comes into contact with the connector.

      2. 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 too tight, apply a small amount of fresh engine oil to the tip of the pipe.

      3. A005JBD

        After connecting the pipe and connector, try to pull them apart to confirm that they are securely connected.

        Text in Illustration
        A005GO2 Pull

      4. Install a EFI fuel pipe clamp or No. 2 fuel pipe clamp.

      5. Inspect for fuel leak.

  5. INSPECT FOR FUEL LEAK


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