Crankshaft (7X) Sensor

The CKP sensor is a permanent magnet generator, known as a variable reluctance sensor. The magnetic field of the sensor is altered by a crankshaft mounted reluctor wheel that has seven machined slots, six of which are equally spaced 60 degrees apart. The seventh slot is spaced 10 degrees after one of the 60-degree slots. The CKP sensor produces seven pulses for each revolution of the crankshaft. The pulse from the 10-degree slot is known as the sync pulse. The sync pulse is used to synchronize the coil firing sequence with the CKP.