Detection Condition
WARNING: This page is about a different car, the 2003 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
CMP sensor is a magnetic transducer. CMP sensor detects position of camshaft and identifies when piston No. 1 is on its compression stroke. A signal is sent to PCM and used to synchronize firing of sequential fuel injectors.