Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or Single Sensor)

Camshaft position sensor signal is out of expected range. Before replacing the sensor, check for timing chain stretch which causes erratic cam position readings. On VQ35DE engines, the timing chain guides wear around 100-120K miles. If the engine rattles on cold start, the chain/guides need replacement. If no rattle, replace the sensor (Hitachi CAM0016).

Timing chain stretch is the #1 cause of P0341 on the Ecotec 2.4L. GM TSB #14-06-01-002A. Check for a cold-start rattle lasting 1-3 seconds. If present, replace the timing chain, tensioner, and guides as a kit. Also verify engine oil level and condition -- low oil accelerates chain wear. Do NOT just replace the cam sensor without checking the chain.

The cam sensor signal goes out of range when the camshaft phaser (VVT actuator) sticks on later Hemi engines with MDS/VVT. Check engine oil level and condition first -- dirty or low oil causes phaser issues. Replace the cam sensor (Mopar 5149025AA) and perform an oil change. If the code returns, the cam phaser may need replacement.

The Pentastar 3.6L has known timing chain issues after 100K miles. TSB 09-002-14 REV.A addresses timing chain and guide failures. If P0341 is accompanied by P0016 or P0017, the timing is off and the chain/guides need replacement. If only P0341, try replacing the cam sensor first (Mopar 5149025AA) and clearing the code.