P0171 on the 2003 Mazda Protege
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.
| 0100207 | 2007-02-22. Service bulletin. WHISTLE NOISE AT IDLE, FUEL CUT UNDER BOOST, MIL ILLUMINATED, DTC P0171 SET. *KB |
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| 0103406 | 2007-01-09. Service bulletin. WHISTLE NOISE AT IDLE FUEL CUT UNDER BOOST, MIL ILLUMINATED, DTC P0171 SET. *KB |
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.