Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Knock Sensor: Testing and Inspection

INSPECTION

1. REMOVE ENGINE FROM VEHICLE
2. REMOVE INTAKE MANIFOLD AND THROTTLE BODY ASSEMBLY
3. REMOVE KNOCK SENSOR




a. Disconnect the knock sensor connector.
b. Remove the nut and knock sensor.

4. INSPECT KNOCK SENSOR




Using an ohmmeter, make sure there is continuity between the terminals.
If there is no continuity, replace the sensor.

5. REINSTALL KNOCK SENSOR




a. Install the knock sensor with the nut.

Torque: 20 Nm (15 ft.lbf)

HINT: Angling the knock sensor below the horizontal (below 0 °) is recommended.

b. Connect the knock sensor connector.

6. REINSTALL INTAKE MANIFOLD AND THROTTLE BODY ASSEMBLY
7. INSTALL ENGINE TO VEHICLE