# P0171 on the 2004 GMC Envoy

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 P0171

- [10160997](https://open.wenmarpro.com/bulletins/10160997), 2019-06-10: This Preliminary Information Document advises the dealer that there is a software update available for the Powertrain Control Module to address diagnostic trouble code P0171. If the software update does not correct the condition, the dociment directs the dealer to related technical servce bulletins that cover cleaning fuel injectors and addressing fuel quality.
- [10017245](https://open.wenmarpro.com/bulletins/10017245), 2005-10-29: SERVICE VME \- FUEL SYSTEM LEAN DTCS P0101 P0171 P0174. \*TT
- [10014881](https://open.wenmarpro.com/bulletins/10014881), 2005-05-11: SERVICE ENGINE SOON \(SES\) LIGHT DUE TO A P0171 DIAGNOSTIC TROUBLE CODE. \*TT
- [10014870](https://open.wenmarpro.com/bulletins/10014870), 2005-05-11: 1999 \- 2005 GEN II COLD ENGINE MISFIRE AT IDLE WITH POSSIBLE P0171 AND/OR P0174. \*TT
- [10010238](https://open.wenmarpro.com/bulletins/10010238), 2004-11-05: DIAGNOSTIC TROUBLE CODE P0171 . \*SC SERVICE ENGINE SOON LIGHT DUE TO DIAGNOSTIC TROUBLE CODE P0171. \*TT
- [10008820](https://open.wenmarpro.com/bulletins/10008820), 2004-08-24: 02\-04 4.2L LL8 DIAGNOSTIC TROUBLE CODE P0171. \*MJ
- [10007277](https://open.wenmarpro.com/bulletins/10007277), 2004-06-09: DIAGNOSTIC TROUBLE CODE \(DTC\) P0171. \*TT