Camshaft Position (CMP) Sensor
The CMP sensor is a hall effect sensor used to determine the camshaft position by sensing the edges of the three lobed camshaft. The CMP sensor is mounted at the front of the engine block, above the crankshaft pulley.
The PCM calculates the CMP signal and the crankshaft position (CKP) sensor signal to determine the camshaft to crankshaft position for correct fuel injection timing during the compression stroke.