Camshaft Position Sensor: Description and Operation

CAMSHAFT POSITION SENSOR (CMPS)




DESCRIPTION
The camshaft position sensor (CMPS) is a sensor that detects the top dead center of the NO. 1 cylinder. The CMPS consists of a hall type sensor and a target wheel on the end of the intake camshaft. When the target triggers the sensor, the output voltage is 5 V. If not, the output voltage is 0 V. This CMPS signal is sent to the ECM and the ECM uses it for synchronizing the firing of sequential fuel injectors.