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

Voltage at Idling Speed Voltage when Hit
Note: Voltage when the mounting bolt is tapped by a hammer.
Tightening Torque
approx. 5
Note: The voltages refer to readings taken directly on the sensor connections. The pins of the knock sensor are gold plated.
approx 100
Note: The voltages refer to readings taken directly on the sensor connections. The pins of the knock sensor are gold plated.
22 Newton Meter (Nm)