LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Oldsmobile >> 1997 >> Regency >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Systems Tests W/Codes >> Diagnostic Trouble Codes >> DTC P0300-P0308 - Engine Misfire Detected >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC P0300-P0308 - Engine Misfire Detected: Notes

NOTE: DTC P0300 is set when the ECM recognizes a general misfire in the engine. If the ECM determines the cylinder causing the misfire it will set a specific DTC P0301-P0308, to indicate the number of the cylinder causing the misfire. If a DTC P0301-P0308 is retrieved, use this procedure to diagnose the misfire condition in the indicated cylinder.
NOTE: For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .