Crankshaft Position Sensor: Description and Operation

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Crankshaft Position Sensor (CKP Sensor)
The sensor consists of magnet and coil. It is mounted on oil pan with specified air gap between the sensor core end and crankshaft timing belt pulley tooth.
As the crankshaft turns, AC voltage (pulse) is generated in the sensor.
ECM (PCM) uses this signal as;
- a data to calculate the engine speed
- one of the signals for cylinder identification
- one of the signals to monitor occurrence of a misfire