FUEL SYSTEM PRECAUTION


  1. IGNITION SWITCH EXPRESSION

    Tech Tips

    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 Off Off
    Ignition Switch ON ON On (IG)
    Ignition Switch ACC ACC On (ACC)
    Engine Start START Start

  2. PRECAUTIONS


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

    2. Do not smoke or work near fire when handling the fuel system.

    3. Keep gasoline away from rubber or leather parts.

  3. DISCHARGE FUEL SYSTEM PRESSURE

    CAUTION:


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

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


    1. Remove the rear bench type seat cushion assembly Click here.

    2. A0056D6

      Remove the rear floor service hole cover.

    3. 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

      If DTC P0171 (system too lean) is output, clear the DTC Click here.

    5. Crank 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 LINE


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


      1. Discharge fuel system pressure.

      2. Disconnect the fuel tube.

      3. Drain the fuel remaining inside the fuel tube into a container.

      4. A0058T4E37
        Text in Illustration
        *1 Plastic Bag

        To prevent damage and contamination, cover the disconnected pipe and connector with a plastic bag.

    2. A0054T3E67

      Perform the following procedure when disconnecting a fuel delivery pipe (for Metallic Type):

      Tech Tips

      The structure of a fuel tube connector is as shown in the illustration.


      1. Check if there is any damage or foreign objects on the pipe connection.

        Text in Illustration
        *1 O-Ring
        *2 Retainer
        *3 Pipe
        *4 Nylon Tube
        *5 Fuel Tube Connector
      2. A0059D3E01
        Text in Illustration
        *1 No. 2 Fuel Pipe Clamp
        *2 Claw

        Remove the No. 2 fuel pipe clamp.

        Note

        Do not reuse the fuel pipe clamp.

      3. Find the metallic connector of the fuel tube assembly.

      4. A0057PHE17

        Install SST to the connector as shown in the illustration.

        SST
        09268-21010
      5. A00565YE20
        *a Retainer
        *b (4 places)
        *c Insert

        Turn SST, align the retainers inside the connector with SST chamfers and insert SST into the connector.

      6. Slide SST and the connector together towards the fuel tube assembly.

    3. Perform the following procedure when connecting a fuel tube connector (for Metallic Type):


      1. Check if there is any damage or foreign objects on the pipe connection area.

      2. A00582XE01
        *1 Push
        *2 Pull

        Match the axis of the connector with the axis of the pipe, and push the pipe into the connector until the connector makes a "click" sound. If the pipe is difficult to push into the connector, apply a small amount of clean engine oil to the tip of the pipe.

      3. After connecting, check if the pipe and connector are securely connected by pulling on them.

      4. A0059D3E04
        Text in Illustration
        *1 No. 2 fuel pipe clamp
        *2 Claw

        Install a new No. 2 fuel pipe clamp.

      5. Inspect for fuel leak.

    4. A00535XE04
      Text in Illustration
      *1 No. 1 Fuel Pipe Clamp

      Perform the following procedure when disconnecting a fuel tube connector (for Quick Type A):


      1. Release the claw and remove the No. 1 fuel pipe clamp.

      2. A0057XFE34
        Text in Illustration
        *1 Fuel Hose Connector Cover

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

      3. Check that there is no dirt or other foreign objects on the pipe and contact surface before disconnecting them. Clean them if necessary.

      4. Disconnect the connector from the pipe by hand.

      5. A0058JAE54
        *1 Pinch
        *2 Retainer
        *3 Pull Out
        *4 O-Ring

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

      6. Check that there is no dirt or other foreign objects on the contact surface of the disconnected pipe. Clean them if necessary.

      7. A0058AVE38
        Text in Illustration
        *1 Plastic Bag

        Do not damage the disconnected pipe or connector, and prevent entry of foreign objects by covering them with plastic bags.

    5. Perform the following procedure when connecting a fuel tube connector (for Quick Type A):


      1. A00549AE18
        *1 Push
        *2 Pull

        Check if there is any damage or foreign objects on the pipe connections.

      2. Line up the two parts of the pipes to be connected and push them together until the connector makes a "click" sound. 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 pipes, check that the pipe and connector are securely connected by pulling on them.

      4. A00598JE02
        Text in Illustration
        *1 Fuel Tube Connector Cover

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

      5. A00535XE04
        Text in Illustration
        *1 No. 1 Fuel Pipe Clamp

        Attach the lock claws and install the No. 1 fuel pipe clamp.

      6. Inspect for fuel leak.

    6. Perform the following procedure when disconnecting a fuel tube connector (for Quick Type B):


      1. Before disconnecting the connector, clean off any dirt that may be present.

      2. Pull the tabs of the fuel tube retainer to detach the 2 claws.

      3. A0058JPE01
        *1 Pull
        *2 Pull Out
        *3 Retainer
        *4 Claw

        Pull the retainer up as shown in the illustration.

        Tech Tips

        Be sure to disconnect the connector by hand.

      4. A0057EL

        If the connector and pipe are stuck, hold the fuel pipe by hand and push and pull on the connector. Pull the two pipes apart to separate the connector.

      5. If there is any dirt or any other foreign objects on the contact surfaces of the disconnected pipes, clean them as necessary.

      6. A00585CE08
        Text in Illustration
        *1 Plastic Bag

        To prevent damage and contamination, cover the disconnected pipe and connector with a plastic bag.

    7. Perform the following procedure when connecting a fuel tube connector (for Quick Type B):


      1. A00540XE02
        *a Push
        *b Retainer
        *c Claw

        Line up the two parts of the pipes to be connected, and fully push the fuel tube connector and pipe together until they are fully seated. Next, push the retainer into the connector until its claws lock. 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.

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

      3. Inspect for fuel leak.

    8. Observe the following precautions when handling a nylon tube.

      Note


      • Do not twist the connection part of the nylon tube and quick connector when connecting them.

      • Do not bend, kink, or twist the nylon tube.

      • Do not remove the EPDM protector on the outside of the nylon tube.

      • Do not close the piping by kinking the nylon tube.

  5. INJECTOR


    1. A0059F6

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


      1. Do not reuse an O-ring or insulator.

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

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

    2. A0059DOE01
      Text in Illustration
      *1 Delivery Pipe
      *2 O-Ring
      *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 injector before installing the injector.

  6. FUEL SUCTION TUBE ASSEMBLY WITH PUMP AND GAUGE


    1. A0052SSE01
      Text in Illustration
      *1 Tube

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