{"vehicle":{"id":"2001_honda_odyssey","year":2001,"make":"Honda","model":"Odyssey"},"code":"P0401","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10024566,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2008-04-24","date":"2008-02-05","document_id":"05-026","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","summary":"HONDA SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. WARRANTY EXTENSION: EGR VALVE CONTAMINATION OR EGR PORT CLOGGING MAY CAUSE DTC P0401, DTC P1491, OR ENGINE HESITATION/SURGE. CSC WAS RECEIVED. *NJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10024566"},{"nhtsa_id":10017431,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-11-08","date":"2005-07-20","document_id":"00009","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","summary":"WARRANTY EXTENSION: EGR VALVE CONTAMINATION OR EGR POR CLOGGING MAY CAUSE DTC P0401, DTC P1491, OR ENGINE HESITATION/SURGE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10017431"},{"nhtsa_id":615781,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-01-30","date":"2000-10-16","document_id":"161000","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)","summary":"INFORMATION REGARDING P0401, LOW EXHAUST GAS RECIRCULATION VALVE (EGR) FLOW. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/615781"}],"url":"https://open.wenmarpro.com/makes/honda/odyssey/2001/bulletins?code=P0401"},"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/honda/odyssey/2001/codes/P0401","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."]}