Category Archives: GM 6.5

GM/Detroit 6.5L ENGINE CONTROLS – DTC P0300 Engine Misfire Detected

Refer to Fuel Injection Line Routing Figure. Circuit Description The PCM times the intervals between each pulse of the crankshaft position sensor and compares each time interval with the other 8 to determine when an excessive change in crankshaft speed has occurred. This pulse is generated from a 4X reluctor wheel located on the front… Read More »