FUEL SYSTEM PRECAUTION


  1. BEFORE WORKING ON FUEL SYSTEM


    1. When disconnecting a fuel line, fuel will splash. So observe the following precautions:


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

      2. Keep gasoline away from rubber or leather parts.

  2. 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 shop rag or a piece of cloth to prevent fuel from spraying or coming out.


    1. Remove the rear seat cushion assembly.

      Tech Tips


    2. Remove the rear seat cushion lock hook.

      Tech Tips


    3. A01EXXB

      Remove the rear floor service hole cover.

    4. Disconnect the fuel pump connector.

    5. Start the engine.

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

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

      Tech Tips

      DTC P0171/74 (fuel problem) may be stored.

    8. Disconnect the cable from the negative (-) 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 a new rear seat cushion lock hook.

      Tech Tips


    13. Install the rear seat cushion assembly.

      Tech Tips


  3. FUEL LINE


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


      1. Discharge fuel system pressure (See step 2).

      2. Disconnect the fuel pump tube.

      3. Drain the fuel that remains in the fuel pump tube.

      4. Cover the disconnected fuel pump tube with a plastic bag to prevent damage and contamination.

      5. Put a container under the connectors.

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


      1. A01ETH4E01
        Text in Illustration
        *1 No. 1 Fuel Pipe Clamp
        *2 No. 2 Fuel Pipe Clamp

        Remove the fuel pipe clamp.

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

      3. Pinch the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.

      4. A01EVWRE26
        Text in Illustration
        *1 Retainer
        *2 O-ring
        *3 Fuel Tube Connector
        A01EUL1 Pinch
        A01ETOA Pull Out

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

      5. Check that there is no dirt or other foreign matter on the contact surface of the disconnected fuel pipe. Clean them away if necessary.

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

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


      1. A01ESPN

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

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

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

      4. Inspect for fuel leaks Click here.

      5. Install the fuel pipe clamp.

    4. A01EW1EE02

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

      Text in Illustration
      *1 Fuel Tube Connector
      *2 Fuel Pipe
      *3 Retainer
      A01EUL1 Pinch
      A01ETOA Pull Out

      1. Check that there is no dirt or other foreign matter around the fuel tube connector before disconnecting it. Clean the joint if necessary.

      2. Pinch the retainer as illustrated, then pull out the fuel tube connector from the fuel pipe.

        Note

        Be sure to disconnect the fuel tube connector by hand.

      3. A01ESY3E05

        If the fuel tube connector and fuel pipe are stuck, pinch the fuel pipe, then push and pull the fuel tube connector to release and disconnect the fuel tube connector.

      4. Check if there is any dirt or other foreign matter on the seal surface of the disconnected fuel pipe and clean it away as necessary.

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

    5. A01EWZF

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


      1. Check for damage or foreign matter on the connected part of the fuel pipe.

      2. Align the fuel tube connector with the fuel pipe, then push in the fuel tube connector until the retainer makes a "click" sound.

        Tech Tips

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

      3. A01EVUC

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

      4. Inspect for fuel leaks Click here.

    6. Observe the following precautions when handling a nylon tube:

      CAUTION:


      • Do not twist the fuel tube connector part of the nylon tube or the fuel tube connector when connecting them.

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

      • Do not pinch or kink the nylon tubes to prevent fuel leakage.

  4. INJECTOR


    1. A01ESTWE02
      Text in Illustration
      *1 Delivery Pipe
      *2 O-ring
      *3 Injector
      *4 Insulator
      *5 Intake Manifold

      Install the injector to the delivery pipe and the lower intake manifold as shown in the illustration.

      Note

      Before installing the injector, be sure to apply appropriate lubricant or gasoline where the delivery pipe or intake manifold contacts the injector O-rings.

    2. A01EWY0E01
      Text in Illustration
      *1 O-ring
      *2 Delivery Pipe
      *a CORRECT
      *b INCORRECT

      Observe the following precautions when removing and installing the fuel injectors:


      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.

  5. FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY


    1. A01ESQCE01
      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.

  6. INSPECT FOR FUEL LEAK


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