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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Camshaft Position Sensor: Description and Operation
The Camshaft Position
(CMP) Sensor is located in the distributor. The CMP sensor consists of a signal generator and a signal rotor. An AC voltage is generated in the CMP sensor when the signal rotor turns. This digital signal (4 pulses/revolution) is sent to the Powertrain Control Module
(PCM). The PCM uses the CMP sensor signal to distinguish individual cylinders, calculate engine speed, trigger the ignition system, and help determine when to energize the fuel injector.