Crankshaft Position Sensor: Description and Operation
DESCRIPTIONThe Crankshaft Position (CKP) sensor consists of a magnet and coil. It is mounted on the oil pan, behind the crank pulley with a specified air gap between the sensor core end and the crankshaft timing belt pulley tooth.
OPERATION
As the crankshaft turns, an AC voltage (pulse) is generated in the sensor. The ECM detects the crankshaft revolution speed from the signal and uses it as one of the signals for misfire monitoring.