Toyota Tundra. Manual — part 1291

b. Remove the 3 bolts [B] and water outlet pipe.

Fig. 359: Identifying Water Outlet Pipe Bolts

4. REMOVE KNOCK SENSOR

a. Disconnect the 2 sensor connectors.

b. Remove the 2 bolts and 2 sensors.

Fig. 360: Locating Knock Sensor Bolts & Connector

INSPECTION

1. INSPECT KNOCK SENSOR

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

If the resistance is not as specified, replace the sensor.

Tester Connection Condition Specified Condition

1 - 2

20°C (68°F) 120 to 280 kohms

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

Fig. 361: Measuring Resistance Between Knock Sensor Connector Terminals

INSTALLATION

1. INSTALL KNOCK SENSOR

a. Install the 2 sensors with the 2 bolts as shown in the illustration.

Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf)

b. Connect the 2 sensor connectors.

Fig. 362: Locating Knock Sensor Bolts

2. INSTALL NO. 1 WATER OUTLET PIPE

a. Install the 3 bolts [A] and water outlet pipe.

Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

b. Install the 4 wire harness clamps [B].

3. INSTALL CYLINDER HEAD SUB-ASSEMBLY RH (for Bank 1)

a. Install the cylinder head RH (see INSTALLATION ).

4. INSTALL ENGINE ASSEMBLY

a. Install the engine (see INSTALLATION ).

Fig. 363: Identifying Water Outlet Pipe Bolts

AIR FUEL RATIO SENSOR

COMPONENTS

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

Fig. 364: Identifying Air Fuel Ratio Sensor Replacement Components With Torque Specification (1 Of 2)

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra