{"vehicle":{"id":"2007_acura_tsx","year":2007,"make":"Acura","model":"TSX"},"code":"P2271","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10146073,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-10-29","date":"2018-10-16","document_id":"B18100D","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Servicenews article - Is the MIL on with DTC P2271 (secondary HO2S [sensor 2] circuit signal stuck rich)? What's likely causing this is the PCM is misinterpreting the A/F sensor (sensor 1) signals, causing the PCM to think that sensor 2 is stuck rich.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10146073-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10146073-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10146073"},{"nhtsa_id":10142451,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-07-02","date":"2018-06-14","document_id":"BTS180603","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Tech line summary article - Is the MIL on with DTC P2271 (secondary HO2S [sensor 2] circuit signal stuck rich)? What's likely causing this is the PCM is misinterpreting the A/F sensor (sensor 1) signals, causing the PCM to think that sensor 2 is stuck rich. To fix this issue, replace both sensors.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10142451-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10142451-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10142451"}],"url":"https://open.wenmarpro.com/makes/acura/tsx/2007/bulletins?code=P2271"},"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/acura/tsx/2007/codes/P2271","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."]}