P0171 on the 2005 Chevrolet Trailblazer
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.
| PIP3330D | 2019-06-10. Service bulletin. 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. |
|---|---|
| 3522 | 2005-10-29. Service bulletin. SERVICE VME - FUEL SYSTEM LEAN DTCS P0101 P0171 P0174. *TT |
| 3232 | 2005-05-11. Service bulletin. 1999 - 2005 GEN II COLD ENGINE MISFIRE AT IDLE WITH POSSIBLE P0171 AND/OR P0174. *TT |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.