Camshaft Position (CMP) Sensor
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The CMP sensor is a signal generator that is composed of a magnet and a coil with an iron core. The PCM relies on the AC signal provided by the CMP sensor in order perform the following:
- To optimize the ignition timing
- To optimize the fuel delivery
- To detect any engine misfire