Lexus ES: Installation

Lexus ES (XZ10) Service Manual / Engine & Hybrid System / A25a-fxs (engine Control) / Air Fuel Ratio Sensor (for Sensor 1) / Installation

INSTALLATION

PROCEDURE

1. INSTALL AIR FUEL RATIO SENSOR

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

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(a) Using SST, install the air fuel ratio sensor to the exhaust manifold (TWC: Front Catalyst).

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

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

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
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When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 180 mm (7.09 in.)):
37.7 N*m (384 kgf*cm, 28 ft.*lbf)

*a	Torque Wrench Fulcrum Length

(b) Connect the air fuel ratio sensor connector.

*a	Tie Band
*b	Wire Harness Clamp

2. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY

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3. INSPECT FOR EXHAUST GAS LEAK

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4. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

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Components

COMPONENTS ILLUSTRATION *A for EGR Valve Bracket Connection Type - - *1 NO. 1 EGR PIPE SUB-ASSEMBLY *2 EGR VALVE ASSEMBLY *3 EGR VALVE BRACKET *4 EGR INLET GASKET *5 EGR VALVE ADAPTER GASKET *6 EGR VALVE GASKET *7 NO. 8 WATER BY-PASS HOSE *8 NO. 4 WA

Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical > Front Radar Sensor > Trouble Codes (e) Check for DTCs (Test Failed / Pending / Confirmed). Techstream Display

Lexus ES: Installation

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Air Fuel Ratio Sensor (for Sensor 2)

Components

Removal

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Components

Dtc Check / Clear