{"vehicle":{"id":"1999_chevrolet_cavalier","year":1999,"make":"Chevrolet","model":"Cavalier"},"code":"P0300","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":613587,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-07-25","date":"2000-05-01","document_id":"00032","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","summary":"SOME CUSTOMERS MAY EXPERIENCE ILLUMINATION OF THE SERVICE ENGINE SOON (SES) LIGHT AND CODE P0300 (GENERAL MISFIRE), WITH DRIVEABILITY COMPLAINTS OF ENGINE MISFIRE, ROUGH IDLE AND HESITATION. **MR","document":null,"url":"https://open.wenmarpro.com/bulletins/613587"},{"nhtsa_id":611249,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-05-31","date":"2000-02-01","document_id":"000604009","mfr_campaign":null,"component":"VEHICLE SPEED CONTROL:CRUISE CONTROL","summary":"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","document":null,"url":"https://open.wenmarpro.com/bulletins/611249"}],"url":"https://open.wenmarpro.com/makes/chevrolet/cavalier/1999/bulletins?code=P0300"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/chevrolet/cavalier/1999/codes/P0300","note":"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.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}