# P0302 on the 2013 Mazda Mazda3

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0302

- [10163362](https://open.wenmarpro.com/bulletins/10163362), 2019-08-01: Some vehicles may experience the Check Engine Light ON with DTC P0300:00, P0301:00, P0302:00, P0303:00 and/or P0304:00 stored in memory. P0300:00: Random misfire detected, P0301:00: Cylinder No.1 misfire detected, P0302:00: Cylinder No.2 misfire detected, P0303:00: Cylinder No.3 misfire detected, P0304:00: Cylinder No.4 misfire detected. Carbon may be deposited around the intake valves, resulting in unstable engine combustion and misfiring during the accelerated warm\-up system \(AWS\) operation.
- [10105463](https://open.wenmarpro.com/bulletins/10105463), 2017-06-07: SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY. • P0300:00: RANDOM MISFIRE DETECTED • P0301:00: CYLINDER NO.1 MISFIRE DETECTED • P0302:00: CYLINDER NO.2 MISFIRE DETECTED • P0303:00: CYLINDER NO.3 MISFIRE DETECTED • P0304:00: CYLINDER NO.4 MISFIRE DETECTED CARBON MAY BE DEPOSITED AROUND THE INTAKE VALVES, RESULTING IN UNSTABLE ENGINE COMBUSTION AND MISFIRING DURING THE ACCELERATED WARM\-UP SYSTEM \(AWS\) OPERATION.
- [10099813](https://open.wenmarpro.com/bulletins/10099813), 2017-05-19: SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL. P0300:00: RANDOM MISFIRE DETECTED P0301:00: CYLINDER NO.1 MISFIRE DETECTED P0302:00: CYLINDER NO.2 MISFIRE DETECTED P0303:00: CYLINDER NO.3 MISFIRE DETECTED P0304:00: CYLINDER NO.4 MISFIRE DETECTED THIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. IN COLD WEATHER BELOW 14 °F \(\-10 °C\) WITH REPEATED SHORT TIME OPERATION, EXCESS FUEL INJECTED IN THE CYLINDERS MAY ACCUMULATE IN THE CRANK CASE AND RESULT IN INCREASED OIL LEVEL AND MISFIRE.
- [10099730](https://open.wenmarpro.com/bulletins/10099730), 2017-05-19: SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL.P0300:00: RANDOM MISFIRE DETECTED P0301:00: CYLINDER NO.1 MISFIRE DETECTED P0302:00: CYLINDER NO.2 MISFIRE DETECTED P0303:00: CYLINDER NO.3 MISFIRE DETECTED P0304:00: CYLINDER NO.4 MISFIRE DETECTEDTHIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. IN COLD WEATHER BELOW 14 °F \(\-10 °C\) WITH REPEATED SHORT TIME OPERATION, EXCESS FUEL INJECTED IN THE CYLINDERS MAY ACCUMULATE IN THE CRANK CASE AND RESULT IN INCREASED OIL LEVEL AND MISFIRE.
- [10099235](https://open.wenmarpro.com/bulletins/10099235), 2017-05-16: SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL. P0300:00: RANDOM MISFIRE DETECTED P0301:00: CYLINDER NO.1 MISFIRE DETECTED P0302:00: CYLINDER NO.2 MISFIRE DETECTED P0303:00: CYLINDER NO.3 MISFIRE DETECTED P0304:00: CYLINDER NO.4 MISFIRE DETECTED THIS IS CAUSED BY IMPROPER CONTROL LOGIC OF THE PCM. IN COLD WEATHER BELOW 14 °F \(\-10 °C\) WITH REPEATED SHORT TIME OPERATION, EXCESS FUEL INJECTED IN THE CYLINDERS MAY ACCUMULATE IN THE CRANK CASE AND RESULT IN INCREASED OIL LEVEL AND MISFIRE.
- [10092781](https://open.wenmarpro.com/bulletins/10092781), 2017-02-24: SOME VEHICLES MAY EXPERIENCE A LACK OF ENGINE POWER/ROUGH IDLING AND THE CHECK ENGINE LIGHT ON WITH ONE OR MORE OF THE MISFIRE RELATED DTCS OF P0300:00, P0301:00, P0302:00, P0303:00 AND P0304:00. THIS CONCERN MAY BE CAUSED BY AN INTERNAL FAILURE OF THE IGNITION COIL\(S\) DUE TO A HIGH DIFFERENCE BETWEEN COLD AND WARM AMBIENT TEMPERATURES. THE PRODUCTION METHOD OF THE IGNITION COIL HAS BEEN CHANGED TO ELIMINATE THIS CONCERN.
- [10092026](https://open.wenmarpro.com/bulletins/10092026), 2017-02-16: SOME VEHICLES MAY EXPERIENCE A LACK OF ENGINE POWER/ROUGH IDLING AND THE CHECK ENGINE LIGHT ON WITH ONE OR MORE OF THE MISFIRE RELATED DTCS OF P0300:00, P0301:00, P0302:00, P0303:00 AND P0304:00. THIS CONCERN MAY BE CAUSED BY AN INTERNAL FAILURE OF THE IGNITION COIL\(S\) DUE TO A HIGH DIFFERENCE BETWEEN COLD AND WARM AMBIENT TEMPERATURES. THE PRODUCTION METHOD OF THE IGNITION COIL HAS BEEN CHANGED TO ELIMINATE THIS CONCERN.