You should install a scan tool, monitor the powertrain control module (PCM) for Diagnostic Trouble Codes (DTCs), select the crankshaft position variation learn procedure with a scan tool, follow the scan tool instructions, enable the CKP system variation learn procedure with the scan tool, release the throttle immediately when the engine starts to decelerate and the scan tool displays learn status: learned this ignition. Then, you should turn off the ignition for 30 seconds after the learn procedure is completed successfully.
By BobGM Specialist
29/10/2022