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Home >> Lexus >> 2017 >> LS 460 L, RWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Service Information >> FUEL INJECTOR (Port Injection) >> Removal [09/2015 - ] >> Procedure

Removal [09/2015 - ]: Procedure

  1. PRECAUTION 
    WARNING:
    • Do not smoke or be near an open flame when working on the fuel system.
    • Keep gasoline away from rubber or leather parts.
    • Do not allow fuel to spray when removing the pipe between the high pressure side fuel pump and the fuel injector. The fuel in the pipe is highly pressurized.
  2. DISCHARGE FUEL SYSTEM PRESSURE 

    (Refer to PRECAUTION [09/2015 - ] )

  3. REMOVE INTAKE MANIFOLD 

    (Refer to REMOVAL [09/2015 - ] )

  4. DISCONNECT NO. 3 FUEL HOSE 
    GTY663149Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the fuel pipe clamp.
    2. Pinch the tube connector and then pull out the fuel hose.
      NOTE:
      • Check for any dirt and foreign matter contamination in the pipe and around the connector. Clean if necessary. Foreign matter may damage the O-rings or cause leaks in the seal between the pipe and connector.
      • Do not use any tools to separate the pipe and connector.
      • Do not forcefully bend or twist the nylon tube.
      • Check for any dirt and foreign matter on the pipe seal surface. Clean if necessary.
      • Put the pipe and connector ends in plastic bags to prevent damage and dirt contamination.
      • If the pipe and connector are stuck together, pinch the tube between your fingers and turn it carefully to free it. Then disconnect the hose.
  5. REMOVE FUEL TUBE SUB-ASSEMBLY 
    1. Lift up the retainer to release its lock.
      GTY626987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Pinch the tube connector and then pull out the fuel tube.
      NOTE:
      • Check for any dirt and foreign matter contamination in the pipe and around the connector. Clean if necessary. Foreign matter may damage the O-rings or cause leaks in the seal between the pipe and connector.
      • Do not use any tools to separate the pipe and connector.
      • Do not forcefully bend or twist the nylon tube.
      • Check for any dirt and foreign matter on the pipe seal surface. Clean if necessary.
      • Put the pipe and connector ends in plastic bags to prevent damage and dirt contamination.
      • If the pipe and connector are stuck together, pinch the tube between your fingers and turn it carefully to free it. Then disconnect the tube.
  6. REMOVE FUEL DELIVERY PIPE 
    1. Disconnect the 2 delivery pipe connectors.
      GTY661900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the 4 wire harness clamps.
      GTY651452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 4 bolts and 2 fuel delivery pipes.
      GTY676348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      When removing the delivery pipe, hold the pipe by both ends and pull it straight upward.

    4. Remove the 4 delivery pipe spacers and 8 insulators from the cylinder head.
  7. REMOVE FUEL INJECTOR ASSEMBLY 
    1. Remove the 8 fuel injectors from the fuel delivery pipes.
      GTY616309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      For reinstallation, attach a tag or label to the injector shaft.

    2. Disconnect the connector from the injector.
      GTY105314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring from the fuel injector.
      GTY646589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002