P0300 on the 2007 Hyundai Accent
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.
| TSB-08-01-030 | 2009-03-18. Service bulletin. HYUNDAI: TO UPDATE THE ENGINE SOFTWARE TO ADDRESS VEHICLES WHICH MAY EXPERIENCE ROUGH IDLING DURING THE INITIAL COLD START UP PERIOD AND ILLUMINATE THE MALFUNCTION INDICATOR LAMP (MIL) WITH DTC P0300. *PE |
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| 0736004 | 2007-05-10. Service bulletin. ECM UPDATE - ROUGH IDLING DURING INITIAL COLD START - UP PERIOD AND MAY SET DTC P0300. *KB |
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.