Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during air fuel ratio sensor removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

  • Replacement of air fuel ratio sensor
  • Gas leak from exhaust system is repaired

Inspection after repair

  • Poor idle, etc.
  • Engine start function, etc.

PROCEDURE

1. REMOVE V-BANK COVER SUB-ASSEMBLY

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2. REMOVE AIR FUEL RATIO SENSOR (for Bank 2)

(a) Disengage the wire harness clamp.

(b) Disconnect the air fuel ratio sensor connector.

(c) Using SST, remove the air fuel ratio sensor from the exhaust manifold assembly LH (TWC: Front Catalyst).

SST: 09224-00012

NOTICE:

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

3. REMOVE AIR FUEL RATIO SENSOR (for Bank 1)

(a) Disconnect the air fuel ratio sensor connector.

(b) Disengage the 2 wire harness clamps.

(c) Using SST, remove the air fuel ratio sensor from the exhaust manifold assembly RH (TWC: Front Catalyst).

SST: 09224-00012

NOTICE:

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

    Installation

    Camshaft Oil Control Solenoid

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