Camshaft Position Sensor: Description and Operation

Camshaft Position Sensors:

Two Hall Effect type Camshaft Position Sensors (CMP) are used. CMP1 detects when number one cylinder is at top dead center. CMP2 sends a signal for each 1/4 camshaft revolution. This information is sent to the Powertrain Control Module (PCM), where it is used to control fuel injection timing.