P0300 on the 2021 Mazda Mazda2
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.
| 01-012-24 | 2025-01-04. Service bulletin. Some vehicles may exhibit the check engine light ON with DTC P0300:00 (Random misfire detected) stored. This may be caused by a mis-detection of a misfire due to improper PCM control logic. To eliminate this concern, the PCM control logic has been modified. |
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| 01-002-24a | 2024-10-04. Service bulletin. Some customers may experience a check engine light illumination at idle while stopped with DTC P0300:00 stored, resulting in rough idle conditions. • P0300:00: Random misfire detected This concern is caused by improper engine control in the idle range. To eliminate the concern, the PCM control software has been modified. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.