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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Engine Controls, Electronic






NOTE: Initial engine ignition timing is set at 10 ± 2 degrees BTDC and is not adjustable.

The Crankshaft Position sensor (CKP sensor) is a variable reluctance sensor, which is triggered by a 36-minus-1 tooth trigger pulse wheel located inside the engine front cover. The sine wave type signal generated from the crankshaft position sensor provides two types of information:
- the position of the crankshaft in 10-degree increments.
- crankshaft speed (rpm).