Camshaft Position (CMP) Sensor

Fig 1: View Of CMP Sensor, Back Of Engine Cylinder Head & Distributor Style Housing

Courtesy of GENERAL MOTORS CORP.

The camshaft position (CMP) sensor (1) is located in a distributor style housing (2) on the back of engine cylinder head (3). The PCM uses the CMP sensor input in order to control the fuel injectors and the ignition timing. The CMP sensor is adjustable.