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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Electronic Engine Controls




Electronic Engine Controls


Knock Sensor (KS) Sensor

The KS:

- is located in the intake valley of the cylinder block.
- sends a signal to the PCM indicating engine detonation.

For removal and installation, refer to Knock Sensor (KS) - 5.4L Service and Repair or Knock Sensor (KS) - 6.8L Service and Repair.