Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
CHRYSLER, DODGE
Reported code forms P0300
MIL Illumination P0300 and/or Engine Runs Rough With Factory Fill Fuel This bulletin involves filling the fuel tank with an additional 5 gallons of fuel, driving vehicle, then completing several start/stop cycles. The…
CHRYSLER, DODGE
Reported code forms P0300
MIL Illumination P0300 and/or Engine Runs Rough With Factory Fill Fuel This bulletin involves filling the fuel tank with an additional 5 gallons of fuel, driving vehicle, then completing several start/stop cycles. The…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have Service Engine Soon Malfunction Indicator Lamp and the engine misfires. Technician may find Diagnostic Trouble…
MITSUBISHI
Reported code forms P0300
During cold engine start, rough or partial clutch operation may cause powertrain vibration similar to misfire conditions and cause false MIL illumination. New software revises improper Misfire Monitoring (P0300)…
BUICK, CHEVROLET, PONTIAC, SATURN
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that after installing a reman High Value V6 engine it has rough running, idle surge, misfire on one or both banks of the…
BUICK, CHEVROLET, PONTIAC, SATURN
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that after installing a reman High Value V6 engine it has rough running, idle surge, misfire on one or both banks of the…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find…
INFINITI
Reported code forms P0300
IF YOU CONFIRM: Any of the following DTCs are stored in the ECM: - P0031 / P0051, P0032 / P0052, P0130 / P0150, P0133 / P0153, P2A00 / P2A03, P1148 / P1168 OR Any of the following DTCs are stored in the ECM as a result…
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find…
AUDI
Reported code forms P0300
MIL on cylinder misfires (DTCs P0300 - P0308)
AUDI
Reported code forms P0300
MIL may illuminate. DTC? s P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 and/or P0308 for misfire maybe stored in the DTC memory. No drivability issues are present. The cause is the software of the ECM.
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have check engine light and a misfire. Technician will find a P0300 set. If the…
PORSCHE
Reported code forms P0300
Concern: Diagnosis of Failed Camshaft Adjuster Element Information: The following fault codes may be stored in the DME when a camshaft adjuster element fails: Mass Air flow: P0068, P1074 Cylinder Misfire: P0300 Fuel…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician with information about vehicles that misfires or roughness on cold start up. Technician may find Diagnostic Trouble Code P0300 set.…
NISSAN
Reported code forms P0300
IF YOU CONFIRM: The MIL is ON with a Misfire DTC stored (P0300, P0301, P0302, P0303, or P0304), and there are no drivability issues. ACTION: 1. Refer to step 6 in the SERVICE PROCEDURE of this bulletin to confirm this…
CHEVROLET, GMC, HUMMER
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles the have a Service Engine Soon Malfunction Indicator Lamp on and or engine running rough. Technician may find Diagnostic…
VOLKSWAGEN
Reported code forms P0300
When diagnosing faults P0300, P0301, P0302, P0303, P0304, P0305, and/or P0306 for cylinder misfires, perform a Cylinder Combustion Pressure Leakage Test before replacing any components.
VOLKSWAGEN
Reported code forms P0300
When diagnosing faults P0300, P0301, P0302, P0303, P0304, P0305, and/or P0306 for cylinder misfires, perform a Cylinder Combustion Pressure Leakage Test before replacing any components.
VOLKSWAGEN
Reported code forms P0300
Tech Tips (2011-2012 Routan ? MIL ON, Fault P0300, P0301, P0302, P0303, P0304, P0305, and/or P0306 Stored In PCM): When diagnosing faults P0300, P0301, P0302, P0303, P0304, P0305, and/or P0306 for cylinder misfires,…
HONDA
Reported code forms P0300
HONDA: MIL COMES ON WITH DTC P0300 THRU P0304. ONE OR MORE SPARK PLUGS MAY BE FOULED, AND THE MIL COMES ON WITH AT LEAST ONE OF THESE DTCS, P0300 (RANDOM CYLINDER MISFIRE DETECTED), P0301, P0302, P0303, OR P0304 (NO. 1…
HONDA
Reported code forms P0300
HONDA: MIL COMES ON WITH DTC P0300 AND ONE OR MORE OF DTCS P0301 THRU P0306. RANDOM CYLINDER (1 THRU 6) MISFIRE DETECTED. THE PGM-F1 SOFTWARE MISINTERPRETS INPUTS, CAUSING THE DTCS TO SET. ADJUST THE VALVE CLEARANCE,…
AUDI
Reported code forms P0300
AUDI: ECM UPDATE COLD START MISFIRE. THIS RVU HAS BEEN PROACTIVELY RELEASED TO PREVENT THE FOLLOWING CONDITION FROM OCCURRING IN THE VEHICLE-MIL ON; DTC STORED; ENGINE RUNS ROUGH (MISFIRES) AFTER COLD START; DTCS ARE…
BUICK, CHEVROLET, PONTIAC
Reported code forms P0300
BUICK/CHEVROLET/PONTIAC: EXCESSIVE OIL CONSUMPTION AND/OR BLUE EXHAUST SMOKE. ITS MORE APPARENT WHEN DRIVING HIGHWAY SPEED. RARE INSTANCES, A SES LIGHT AND ENGINE MISFIRE MAY BE ENCOUNTERED WITH A P0300 DTC. *PE UPDATED…
AUDI
Reported code forms P0300
AUDI: ONE OR MORE OF THE FOLLOWING DTCS ARE STORED WITHIN FIRST 60 SECONDS, WHEN COOLANT TEMPERATURE IS BETWEEN 10-39%C ACCORDING TO FREEZE FRAME DATA: DTC P0300 (RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED); DTC…
CHEVROLET
Reported code forms P0300
CHEVROLET: SES LIGHT AND/OR ENGINE MISFIRE DUE TO DTCS P0200-P0208 AND/OR DTCS P0300-P0308. *PE UPDATED 6/6/11. *PE
CHEVROLET, GMC, HUMMER, SAAB
Reported code forms P0300
SAAB/HUMMER/GMC/CHEVROLET: MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED, DTCS P0300-P0306, ENGINE RUNS ROUGH (INSPECT FOR WATER INTRUSION IN SPARK PLUG RECESS AREA, REPLACE SPARK PLUG AND IGNITION COIL, SEAL IGNITION…
BUICK, CHEVROLET, GMC
Reported code forms P0300
BUICK/CHEVROLET/GMC: MALFUNCTION INDICATOR LAMP (MIL) ON; DTC P0300, P0303, P0306, P062B, P0698, P0532, P0335, P0222 OR P0122 SET, ENGINE HARNESS CHAFFING. CONCERN MAY BE CAUSED BY ENGINE WIRING HARNESS MAKING CONTACT…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
BUICK/CADILLAC/CHEVROLET/GMC: ROUGH IDLE, ENGINE MISFIRE AND/OR CHECK ENGINE LIGHT ON, DTC P0300 (REPROGRAM ECM). *PE
AUDI
Reported code forms P0300
AUDI: MIL ON; ROUGH IDLE; ONE OR MORE OF THE FOLLOWING DTCS ARE STORED-DTC P0300 (RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED); DTC P0301-0312 (CYL. 1 MISFIRE DETECTED-CYL.12 MISFIRE DETECTED); ENGINE MAY HAVE REDUCED…
AUDI
Reported code forms P0300
AUDI: HIGH ENGINE SPEED MISFIRE; NO DRIVABILITY OR STALLING CONCERN. DTC P0300 AND/OR P3001-P0310 (CYLINDER MISFIRE) IS STORED IN THE ENGINE CONTROL MODULE (ECM) DATA MEMORY. THE CAUSE IS THE SOFTWARE OF THE ECM.…