LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Service Information >> FUEL INJECTOR (for Port Injection) >> Removal [11/2021 - ] >> Procedure

Removal [11/2021 - ]: Procedure

  1. PRECAUTION 
    NOTE:

    After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [11/2021 - ]
  2. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [11/2021 - ]

  3. REMOVE BATTERY SERVICE COVER PLATE 

    Refer to PROCEDURE - Step 2

  4. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to PROCEDURE - Step 3

  5. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 

    Refer to REMOVAL [11/2021 - ]

  6. REMOVE EGR VALVE ASSEMBLY 

    Refer to REMOVAL [11/2021 - ]

  7. REMOVE NO. 2 WATER BY-PASS PIPE 
    Refer to PROCEDURE - Step 12
  8. REMOVE FUEL PIPE CLAMP 

    See step  7

  9. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    See step  8
  10. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    See step  9
  11. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 
    See step  10
  12. REMOVE FUEL PUMP SPACER GASKET 

    See step  11

  13. REMOVE FUEL PUMP LIFTER ASSEMBLY 

    See step  12

  14. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY 
    NOTE:

    If fuel intrudes into the combustion chamber, there may be adverse effects to the engine main body.
    1. GTY1074058Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the No. 5 engine wire connector.
      2. Remove the 2 bolts and fuel delivery pipe sub-assembly with the 4 port fuel injector assemblies from the cylinder head sub-assembly.
        NOTE:

        Be careful not to drop the port fuel injector assemblies when removing the fuel delivery pipe sub-assembly.

  15. REMOVE NO. 1 DELIVERY PIPE SPACER 
    1. GTY995921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE INJECTOR VIBRATION INSULATOR 
    1. GTY996260Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE NO. 5 ENGINE WIRE 
    1. GTY996262Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE PORT FUEL INJECTOR ASSEMBLY 
    NOTE:
    GTY993474Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    • Attach a tag or label with the corresponding cylinder number to each port fuel injector assembly so that they can be installed to their original locations.
    • Cover the port fuel injector assemblies with plastic bags to prevent damage and contamination.
    1. GTY996259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals