# P0171 on the 2004 Cadillac Deville

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

- [10008499](https://open.wenmarpro.com/bulletins/10008499), 2004-08-03: SERVICE ENGINE SOON LIGHT ON, DIAGNOSTIC TROUBLE CODES \(DTCS\) P0171, P0174 SET. \*MJ
- [10006619](https://open.wenmarpro.com/bulletins/10006619), 2004-05-07: 4.6L LD8 L37 ENGINE\- DIAGNOSTIC TROUBLE CODE \(DTC\) P0171 OR P0174. \*MR