# P0300 on the 1999 Pontiac Grand AM

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 P0300

- [611249](https://open.wenmarpro.com/bulletins/611249), 2000-05-31: SOME CUSTOMES MAY COMMENT ON A ROUGH ENGINE IDLE AND / OR MISFIRE. THE CHECK ENGINE LIGHT MAY OR MAY NOT BE ILLUMINATED AND DIAGNOSTIC TROUBLE CODE P0300 MAY OR MAY NOT BE SET UNDER ROUGHT IDLE CONDITIONS. \*TT