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Removal [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.
  1. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [11/2021 - 09/2022] , or refer to PRECAUTION [09/2022 - ]

  2. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [09/2020 - ]

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [11/2021 - 09/2022] , or refer to INITIALIZATION [09/2022 - 10/2023] , or refer to INITIALIZATION [10/2023 - ]

  4. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    NOTE:

    Remove any dirt or foreign matter on the fuel tube connector and fuel pipe before performing this work.

    1. Disconnect the fuel tube sub-assembly from the No. 1 fuel pipe sub-assembly.
      1. Pull off the fuel tube connector cover.
        GTY510333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Fuel Tube Connector Cover
        Pull off
      2. Disengage the clamp to disconnect the fuel tube sub-assembly from the engine wire.
        GTY496759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Retainer
        *b Fuel Tube Connector
        *c Nylon Tube
        *d O-ring
        *e Fuel Pipe
        Pinch
        Pull
      3. Pinch the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.
        NOTE:

        Be sure to disconnect the fuel tube connector by hand.

      4. If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
        NOTE:
        • Be sure to disconnect the fuel tube connector by hand.
        • Do not allow any scratches or foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the fuel pipe.
        • Do not forcibly bend, twist or turn the nylon tube.
      5. Check if there is any foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
      6. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
  5. REMOVE INTAKE AIR SURGE TANK ASSEMBLY 

    Refer to REMOVAL [11/2021 - ]

  6. DISCONNECT OUTLET HEATER WATER HOSE A 

    Refer to PROCEDURE - Step 3 [09/2020 - 09/2022] , or refer to PROCEDURE - Step 4 [09/2022 - ]

  7. DISCONNECT INLET HEATER WATER HOSE A 

    Refer to PROCEDURE - Step 4 [09/2020 - 09/2022] , or refer to PROCEDURE - Step 5 [09/2022 - ]

  8. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    1. Remove the No. 1 engine cover sub-assembly.
      GTY1084383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE NO. 3 COVER SUB-ASSEMBLY 
    1. Disengage the clamp to disconnect the engine wire from the wire harness bracket.
      GTY498755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt to disconnect the No. 2 engine wire.
      GTY506699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 2 Engine Wire
    3. Remove the 2 bolts and wire harness bracket from the cylinder head sub-assembly.
    4. Remove the 2 clips and No. 3 cover sub-assembly from the No. 1 fuel pipe sub-assembly.
      GTY517770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    1. Remove the 4 bolts and No. 1 fuel pipe sub-assembly.
      GTY498756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 gaskets from the No. 1 fuel pipe sub-assembly.
  11. REMOVE NO. 3 FUEL PIPE SUB-ASSEMBLY 
    1. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 3 fuel pipe sub-assembly.
      GTY520441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Loosen the 2 bolts (A).
    3. Remove the bolt (B).
    4. Remove the No. 3 fuel pipe sub-assembly from the fuel delivery pipe LH and fuel pump with seal sub-assembly.
  12. 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.
      GTY498226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Loosen the 2 bolts (A).
    3. Remove the bolt (B).
    4. Remove the No. 2 fuel pipe sub-assembly from the fuel delivery pipe RH and fuel pump with seal sub-assembly.
  13. REMOVE FUEL PUMP WITH SEAL SUB-ASSEMBLY (for Bank 1) 
    1. Remove the 2 bolts and fuel pump with seal sub-assembly from the cylinder head cover sub-assembly LH.
      GTY517772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the fuel pump lifter guide, fuel pump lifter assembly and fuel pump insulator from the fuel pump with seal sub-assembly.
      GTY504510Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Pump with Seal Sub-assembly
      *2 Fuel Pump Insulator
      *3 Fuel Pump Lifter Assembly
      *4 Fuel Pump Lifter Guide
    3. Remove the O-ring from the fuel pump sub-assembly.
      GTY507740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the fuel pump spacer gasket from the cylinder head cover sub-assembly LH.
      GTY514389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Pump Spacer Gasket
      *2 O-ring
    5. Remove the 2 O-rings from the No. 4 camshaft bearing cap.
  14. REMOVE FUEL PUMP WITH SEAL SUB-ASSEMBLY (for Bank 2) 

    HINT: 

    Use the same procedure as for the bank 1 side.

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