P0300 on the 2003 Isuzu Ascender
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.
| PIP5628 | 2019-03-11. Service bulletin. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D |
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| 0702001 | 2007-04-06. Service bulletin. VARIOUS DRIVEABILITY SYMPTOMS DUE TO CLOGGED FUEL INJECTORS, MIL DTC'S P0171, P0172, P0174, P0300, P1174, AND P1175. *KB UPDATED 08-03-07. *KB |
| 0711001 | 2007-04-02. Service bulletin. 4.2L LL8 ENGINE - FLASHING AND/OR MIL LIGHT, ROUGH IDLE, MISFIRES DTC'S P0300, P0301, P0302, P0303, P0304, P0305, P0306. *KB |
| 0401S002 | 2004-07-20. Service bulletin. SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, MISFIRE OR ROUGHNESS, DIAGNOSTIC TROUBLE CODE P0300 SET. *TT |
4 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.