Achieva L4-144 2.4L DOHC VIN T SFI (1996)
Camshaft Position Sensor: Description and Operation
The Camshaft Position Sensor (CMP) (1) is used to correlate crankshaft to camshaft position so that the Powertrain Control Module (PCM) can
determine which cylinder is ready to be fueled by the injector. The CMP sensor is also used to determine which cylinder is misfiring when misfire
is present. If the PCM receives an intermiffent signal from the CMP then the CMP Resync Counter will increment.
When the PCM cannot use the information from the CMP sensor, a DTC is set and the PCM will fuel the engine using the Alternating
Synchronous Double Fire (ASDF) method. This sensor has no effect on the El system.
A fault in the CMP sensor circuits will cause a DTC P0341 or P0342.
