Camshaft Position Sensor (4.0L)

Camshaft Position (CMP) sensor is mounted on top of oil pump drive shaft assembly and is located on right side of engine, near oil filter. The CMP sensor is made up of a Hall Effect switch (sync signal generator) and a rotating pulse ring (shutter) on top of oil pump drive shaft assembly. The pulse ring rotates 180 degrees through the sync signal generator. Signal is used in conjunction with the crankshaft position sensor to differentiate between fuel injection and spark events. CMP sensor signal is also used to synchronize fuel injectors with their respective cylinders.