Toyota Venza: Air Fuel Ratio Sensor

Toyota Venza Service Manual / 1ar-fe Engine Control / Air Fuel Ratio Sensor

Components

COMPONENTS

ILLUSTRATION

Removal

REMOVAL

PROCEDURE

1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY

2. REMOVE COOL AIR INTAKE DUCT SEAL

3. REMOVE INLET AIR CLEANER ASSEMBLY

4. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

5. REMOVE AIR FUEL RATIO SENSOR

(a) Disconnect the air fuel ratio sensor connector.

(b) Remove the wire harness clamp.

SST: 09224-00011

Inspection

INSPECTION

PROCEDURE

1. INSPECT AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (HA1A) - 2 (+B)	20°C (68°F)	1.6 to 3.2 Ω
1 (HA1A) - 4 (A1A-)	-	10 kΩ or higher

If the result is not as specified, replace the air fuel ratio sensor.

Text in Illustration

*a	Component without harness connected (Air Fuel Ratio Sensor)

Installation

INSTALLATION

PROCEDURE

1. INSTALL AIR FUEL RATIO SENSOR

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

Text in Illustration

Fulcrum Length

30 mm

Fulcrum Length

300 mm

SST: 09224-00011

Torque:

without SST :

44 N·m {449 kgf·cm, 32 ft·lbf}

with SST :

40 N·m {408 kgf·cm, 30 ft·lbf}

NOTICE:

The "with SST" torque value is effective when using SST with a fulcrum length of 30 mm (1.18 in.).
The "with SST" torque value is effective when using a torque wrench with a fulcrum length of 300 mm (11.81 in.) (See page ).

This torque value is effective when SST is parallel to the torque wrench.

HINT:

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

(b) Connect the air fuel ratio sensor connector.

2. INSPECT FOR EXHAUST GAS LEAK

3. INSTALL NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

4. INSTALL INLET AIR CLEANER ASSEMBLY

5. INSTALL COOL AIR INTAKE DUCT SEAL

6. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY

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