FixVault

Fuel System: Precaution

  1. IGNITION SWITCH EXPRESSION 

    HINT:

    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 article.

    IGNITION SWITCH REFERENCE

    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. BEFORE WORKING ON FUEL SYSTEM 
    1. Do not work near an open flame.
    2. Keep gasoline away from rubber and leather parts.
    3. Discharge the fuel pressure before disconnecting the fuel line to prevent gasoline from spilling out. Refer to the following procedure.
  3. DISCHARGE FUEL SYSTEM PRESSURE 
    CAUTION:
    • The DISCHARGE FUEL SYSTEM PRESSURE procedures must be performed before disconnecting any part of the fuel system.
    • After performing the DISCHARGE FUEL SYSTEM PRESSURE procedures, pressure will remain in the fuel line. When disconnecting the fuel line, place a cloth or equivalent over fittings to reduce the risk of fuel spray.
    1. Remove the rear console box sub-assembly (See DISASSEMBLY ).
    2. Disconnect the fuel pump and sender gauge connector.
    3. Start the engine. After the engine has stopped, turn the ignition switch off.

      HINT:

      If DTC P0171 (system too lean) is output, clear the DTC (See DTC CHECK / CLEAR ).

    4. Check that the engine does not start.
    5. Remove the fuel tank cap, and let the air out of the fuel tank.
      Fig 1: Locating Fuel Pump And Sender Gauge Connector
      G05998524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Connect the fuel pump and sender gauge connector.
    7. Install the rear console box sub-assembly (See INSTALLATION ).
      Fig 2: Locating Fuel Pump And Sender Gauge Connector
      G05998524Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. DISCONNECT FUEL TUBE 
    NOTE: Do not forcibly bend, kink or twist the fuel tube.
    1. Remove the fuel tube from the fuel hose clamp.
    2. Remove the No. 2 fuel pipe clamp.
    3. Wipe off any dirt on the fuel tube connector.
    4. Hold the fuel tube connector, and then install SST.

      SST 09268-21010 

    5. Turn SST to align the retainer inside the fuel tube connector with the chamfered part of SST.
    6. Insert SST into the fuel tube and hold it. Then push the fuel tube connector toward SST.
    7. Mount the retainer of the fuel tube connector onto the chamfered part of SST.
      Fig 3: Identifying Fuel Hose And Tube
      G05998412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Slide SST and the fuel tube connector together towards the fuel tube until they make a "click" sound, and then disconnect the fuel tube.
    9. Drain the fuel remaining inside the fuel tube.
    10. Cover the fuel tube and fuel pipe with a plastic bag to protect the disconnected part.
  5. CONNECT FUEL TUBE 
    1. Connect the fuel tube.
    2. Push the fuel tube connector until it makes a "click" sound.
    3. Install the No. 2 fuel pipe clamp.
    4. Install the fuel tube to the fuel hose clamp.
      Fig 4: Connecting Fuel Main Tube
      G05008857Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. DISCONNECT FUEL TUBE CONNECTOR 
    1. Wipe off any dirt on the fuel tube connector.
    2. Pinch the fuel tube connector, and then disconnect the fuel tube.
      NOTE: Do not use any tools.
    3. Drain the fuel remaining inside the fuel tube.
    4. Cover the fuel tube and fuel pipe with a plastic bag to protect the disconnected part.
      Fig 5: Connecting Fuel Tube Connector To Fuel Pipe
      G05287118Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. CONNECT FUEL TUBE CONNECTOR 
    1. Connect the fuel tube connector to the fuel pipe.
    2. Push the fuel connector until it makes a "click" sound.

      HINT:

      If it is difficult to connect the fuel tube connector, apply a small amount of new engine oil to the tip of the pipe.

  8. INSPECT FOR FUEL LEAK 
    1. Make sure that there are no fuel leaks after performing maintenance on the fuel system.
      1. Connect the Techstream to the DLC3.
      2. Turn the ignition switch to ON and turn the Techstream main switch on.
        NOTE: Do not start the engine.
      3. Select the Active Test mode on the Techstream.

        HINT:

        Refer to the Techstream operator's manual for further details.

      4. Check that there are no leaks from the fuel system.
      5. Turn the ignition switch off.
      6. Disconnect the Techstream from the DLC3.