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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 154 (Fuel System (2GR-FKS) - Service Information) >> FUEL INJECTOR (for Direct Injection) >> Removal [10/2017 - ] >> Procedure

Removal [10/2017 - ]: Procedure

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  1. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (for High Pressure) 

    Refer to REMOVAL [10/2017 - ] 

  2. REMOVE NO. 2 FUEL PIPE SUB-ASSEMBLY 
    1. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 2 fuel pipe sub-assembly.
      GTY798035Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
    2. Remove the No. 2 fuel pipe sub-assembly from the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH.
  3. REMOVE FUEL DELIVERY PIPE WITH SENSOR ASSEMBLY LH 
    NOTE:
    • Do not remove the fuel pressure sensor from the fuel delivery pipe with sensor assembly LH.
    • If the fuel pressure sensor is removed, replace the fuel pressure sensor (fuel delivery pipe with sensor assembly LH) with a new one.
    1. Disconnect the fuel pressure sensor connector.
      GTY837141Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt.
      GTY802574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
    3. Disengage the clamp to disconnect the No. 7 engine wire from the fuel delivery pipe with sensor assembly LH.
    4. Remove the 2 bolts and 2 nuts.
      GTY801602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
      Front
    5. Using an E8 "TORX" socket wrench, remove the 2 stud bolts from the cylinder head LH.
      GTY807558Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
    6. With the connectors still connected, remove the fuel delivery pipe with sensor assembly LH.
      GTY662284Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
      NOTE:
      • If fuel intrudes into the combustion chamber, there may be adverse effects to the engine main body.
      • Make sure that the fuel delivery pipe is disconnected from the fuel delivery pipe with sensor assembly LH.
      • Be extremely careful not to touch or strike the tips of the fuel injector assemblies.
      • Pull and remove the fuel delivery pipe with sensor assembly LH in a straight line without tilting it.
    7. Disconnect the 3 fuel injector assembly connectors and remove the No. 7 engine wire.
  4. REMOVE FUEL DELIVERY PIPE RH 
    1. Remove the bolt.
      GTY815667Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
    2. Disengage the clamp to disconnect the No. 6 engine wire from the fuel delivery pipe RH.
    3. Remove the 2 bolts and 2 nuts.
      GTY837395Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
      Front
    4. With the connectors still connected, remove the fuel delivery pipe RH.
      GTY780769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
      NOTE:
      • If fuel intrudes into the combustion chamber, there may be adverse effects to the engine main body.
      • Be extremely careful not to touch or strike the tips of the fuel injector assemblies.
      • Pull and remove the fuel delivery pipe RH in a straight line without tilting it.
    5. Disconnect the 3 fuel injector assembly connectors and remove the No. 6 engine wire.
  5. REMOVE FUEL INJECTOR ASSEMBLY 
    1. Secure the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH in a vise between aluminum plates and pull out the 6 fuel injector assemblies.
      GTY635435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Pull and remove each fuel injector assembly in a straight line to avoid damaging the seal surface of the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH O-ring.
      • After removing the fuel injector assemblies, remove any O-rings, No. 1 fuel injector back-up rings and No. 3 fuel injector back-up rings remaining on the fuel delivery pipe with sensor assembly LH and fuel delivery pipe RH side.
      • Attach a tag or label with the corresponding cylinder number to each fuel injector assembly so that they can be installed to their original locations.
    2. Remove the nozzle holder clamp from each fuel injector assembly.
    3. Using needle nose pliers, remove the No. 3 fuel injector back-up ring from each fuel injector assembly.
      NOTE:

      Do not damage the area that contacts the O-ring.

    4. Remove the O-ring and No. 1 fuel injector back-up ring from each fuel injector assembly.
    5. Remove the C-ring and injector vibration insulator from each fuel injector assembly.
  6. REMOVE FUEL INJECTOR SEAL 
    1. Using the tip of needle nose pliers, pinch and pull the fuel injector seal at several points to stretch it.
      GTY550396Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Excessively pinching the fuel injector seal may damage the groove of the fuel injector assembly.
      • If a fuel injector assembly is dropped or the tip of the fuel injector assembly is struck, replace it with a new one.
    2. Remove the fuel injector seal from each fuel injector assembly.
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