Sequoia 4WD V8-4.7L (2UZ-FE) (2006)
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Knock Sensor: Testing and Inspection
INSPECTION
1. REMOVE THROTTLE BODY COVER
2. REMOVE INTAKE AIR CONNECTOR
3. REMOVE INTAKE MANIFOLDS ASSEMBLY
4. INSPECT KNOCK SENSOR 1 AND 2
a. Disconnect the knock sensor connectors.
b. Using an ohmmeter, measure the resistance between terminals.
Resistance:
120 to 280 kOhms at 20 degree C (68 degree F)
HINT: If the resistance is not as specified, replace the sensor.
5. REMOVE KNOCK SENSOR
a. Disconnect the 2 knock sensor connectors.
b. Remove the 2 nuts and 2 knock sensors.
6. INSTALL KNOCK SENSOR
