P0171 on the 2004 Cadillac XLR
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.
| 02063 | 2004-07-09. Service bulletin. CONCERN OF DIAGNOSTIC TROUBLE CODE (DTC) P0171, P0175. *TT |
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| 02014 | 2004-05-19. Service bulletin. 3.6 4.6 LY7 ENGINE DIAGNOSTIC TROUBLE CODE P0171. *MR |
2 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.