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Home › Lexus › 2023 › NX 350 Base › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Control System - Service Information › AIR FUEL RATIO SENSOR (for Sensor 1) › Removal [03/2023 - ] › Procedure

Removal [03/2023 - ]: Procedure

  1. REMOVE FRONT FENDER PANEL CUSHION LH 

    Refer to PROCEDURE - Step 2

  2. REMOVE FRONT FENDER PANEL CUSHION RH 
    1. Perform the same procedure as for the LH side.
  3. REMOVE HOOD TO FRONT FENDER SEAL LH 

    Refer to PROCEDURE - Step 3

  4. REMOVE HOOD TO FRONT FENDER SEAL RH 
    1. Perform the same procedure as for the LH side.
  5. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY 

    Refer to REMOVAL [11/2021 - ]

  6. REMOVE COWL VENTILATOR SPLASH SHIELD LH 

    Refer to PROCEDURE - Step 7 [11/2021 - 03/2024] , or refer to PROCEDURE - Step 7 [03/2024 - ]

  7. REMOVE COWL VENTILATOR PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 8 [11/2021 - 03/2024] , or refer to PROCEDURE - Step 8 [03/2024 - ]

  8. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 25 [03/2023 - 03/2024] , or refer to PROCEDURE - Step 25 [03/2024 - ]
  9. REMOVE NO. 3 ENGINE COVER 

    Refer to PROCEDURE - Step 26 [03/2023 - 03/2024] , or refer to PROCEDURE - Step 26 [03/2024 - ]

  10. REMOVE AIR FUEL RATIO SENSOR 
    1. GTY1077008Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disengage the 4 wire harness clamps.
      2. Disconnect the air fuel ratio sensor connector.
      3. Using SST, remove the air fuel ratio sensor from the converter with catalyst assembly.
        • SST: 09224-00012 
        NOTE:

        If the air fuel ratio sensor has been struck or dropped, replace it.

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