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)

Or, hide this message: temporarily or permanently

Camshaft Position Sensor: Description and Operation

Camshaft Position Sensor G40:




Electrical Circuit - Camshaft Position Sensor G40:




Camshaft Position Sensor G4O:
The camshaft Position sensor is used together with the signal for ignition timing sensor G4, to recognize the ignition - TDC of the third cylinder. The engine will not start if signal is lost.