P0341, P0346, P0366, P0391
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects a signal from the CMP sensor, but the number of pulses are less than or greater than what is expected for one crankshaft revolution.
OR
- The ECM does NOT detect a valid CMP signal.
- Either condition must exist for greater than 1 second.