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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Knock Sensor: Service and Repair

REMOVAL

CAUTION: Always disconnect the battery ground cable prior to work on the electronic controls or damage to the electronic component may occur.

1. Disconnect the battery ground cable.
2. Remove the intake manifold.







3. Disconnect the Knock Sensor (KS) connector.







4. Remove the nut and the knock sensor.







INSTALLATION
1. Follow the removal procedure in reverse order.