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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 [11/2021 - 03/2023] >> Procedure

Removal [11/2021 - 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

  7. REMOVE COWL VENTILATOR PANEL SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 8

  8. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 25
  9. 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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