P0300 on the 2000 Toyota Echo
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.
| EG00900 | 2001-02-09. Service bulletin. UNDER CERTAIN CONDITIONS, SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LIGHT ON WITH DIAGNOSTIC TROUBLE CODE P0300 (RANDOM MISFIRE) AND / OR P030# (SINGLE CYLINDER MISFIRE). THE ENGINE CONTROL MODULE (ECM) LOGIC HAS BEEN MODIFIED TO CORRECT THIS CONDITION. *TT |
|---|---|
| 413 | 2001-02-09. Service bulletin. SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0300 (RANDOM MISFIRE) AND / OR P030# (SINGLE CYLINDER MISFIRE). *TT |
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.