Camshaft Position Sensor: Description and Operation

Cam Position Sensor:

PCM Wiring:

CAMSHAFT SENSOR OPERATION
The cam position sensor is a Hall effect switch located in the distributor. It provides one pulse per rotation of the distributor. The PCM uses the cam sensor signal to know the location of the camshaft for proper fuel distribution. PCM code P041 will set if the computer receives reference pulses and does not detect a cam sensor pulse.