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

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / A25a-fxs Engine Control / Air Fuel Ratio Sensor(for Sensor 1) / 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 (sensor 1)
  • Gas leak from exhaust system is repaired

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

PROCEDURE

1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY

Click here

2. REMOVE AIR FUEL RATIO SENSOR

CAUTION:

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

(a) Disengage the 3 wire harness clamps.

(b) Disconnect the air fuel ratio sensor connector.

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

SST: 09224-00012

NOTICE:

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

    Air Fuel Ratio Sensor(for Sensor 2)

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