P0171 on the 2004 Nissan Quest
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.
| 04025 | 2004-04-16. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ON P0171 / P0174 / P1273 / P1283. *TT |
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| 04027A | 2004-04-05. Service bulletin. MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P0171/P0174/P1273/P1283 A/F SENSOR / FUEL INJECTION SYSTEM ON CERTAIN VEHICLES WITH 5 SPEED AUTOMATIC TRANSMISSION ONLY. (THIS VERSION SUPERCEDES NTB04027.) *TT |
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.