Oldsmobile Repair Questions? Ask a Mechanic for Answers ASAP
CKP System Variation Learn Procedure The Crankshaft position system variation compensating values are stored in the PCM non-volatile memory after a learn procedure has been performed. If the actual crankshaft position system variation is not within the crankshaft position system variation compensating values stored in the powertrain control module (PCM), DTC P0300 may set. Refer to Diagnostic Aids in DTC P0300 Engine Misfire Detected. The Crankshaft Position System Variation Learn Procedure should be performed if any of the following conditions are true:
CAUTION: Set the vehicle parking brake and block the drive wheels when performing the Crankshaft Position System Variation Learning Procedure In order to prevent personal Injury. Release the throttle immediately when the engine starts to decelerate. Once the learn procedure is completed, the PCM will return the engine control to the operator and the engine will respond to the throttle position.
The Crankshaft Position System Variation Learn function will be inhibited if any powertrain DTCs other than DTC P1336 are set before or during the Crankshaft Position System Variation Learn procedure. Diagnose and repair any DTCs, if set.