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Home >> Lexus >> 2019 >> IS 350 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2GR-FKS) - Service Information >> Air Fuel Ratio Sensor >> Removal [09/2020 - ] >> Procedure
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Removal [09/2020 - ]: Procedure

  1. REMOVE POWER STEERING ECU ASSEMBLY 

    Refer to REMOVAL [09/2020 - ]

  2. REMOVE BATTERY TRAY 
    1. Remove the 2 bolts and battery tray.
      GTY638441Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. DISCONNECT NO. 3 ENGINE ROOM RELAY BLOCK 
    1. Remove the bolt and nut, and disconnect the No. 3 engine room relay block from the vehicle body.
      GTY804247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE AIR FUEL RATIO SENSOR (for Bank 1) 
    1. Disengage the 2 clamps and disconnect the air fuel ratio sensor connector.
      GTY682653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, remove the air fuel ratio sensor from the exhaust manifold sub-assembly RH (TWC: Front Catalyst).
      • SST: 09224-00012 
      GTY822298Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

  5. REMOVE AIR FUEL RATIO SENSOR (for Bank 2) 
    1. Disengage the clamp and disconnect the air fuel ratio sensor connector.
      GTY658586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, remove the air fuel ratio sensor from the exhaust manifold sub-assembly LH (TWC: Front Catalyst).
      • SST: 09224-00012 
      GTY830730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

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