The Crankshaft Position (CKP) sensor helps the PCM decide the appropriate timing of fuel injectors and ignition spark per cylinder, but the sensor placement varies by year and model, the sensor is mounted on the left ( This is best done by first making sure that the ignition key is in the OFF position, followed by the removal of the timing belt cover and the timing belt. Lift the car and jack it on jackstands. Then, unplug the CKP sensor electrical connector, following the electrical leads of the sensor to the connector. Unscrew the CKP sensor that has retaining bolts to dismount the sensor. Removal is the opposite of installation.