P0174 on the 1999 Ford Windstar
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.
| 03161 | 2003-10-08. Service bulletin. CHECK ENGINE LIGHT ON AND LEAN DIAGNOSTIC TROUBLE CODES (DTC'S) P0171/P0174 (SYSTEM TOO LEAN BANK 1 OR 2) STORED IN MEMORY. *TT |
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| 16920 | 2003-09-09. Service bulletin. LEAN DIAGNOSTIC TROUBLE CODES P0171/P0174 STORED. NEW SERVICE ISOLATOR BOLT ASSEMBLY RELEASED FOR SERVICE. *TT |
| 0338 | 2003-09-04. Service bulletin. CHECK ENGINE LIGHT ON AND LEAN DIAGNOSTIC TROUBLE CODES (DTC'S) P0171/P0174 (SYSTEM TOO LEAN BANK 1 OR 2) STORED IN MEMORY. *TT |
| 0347 | 2003-07-25. Service bulletin. CHECK ENGINE LIGHT ON AND LEAN DIAGNOSTIC TROUBLE CODE (DTC'S) P0171/P0174 STORED. *TT *JB |
| 15740 | 2002-11-07. Service bulletin. SOME VEHICLES EQUIPPED WITH A 3.8L ENGINE MAY EXHIBIT LEAN DIAGNOSTIC TROUBLE CODE P0171 / P0174. *TT |
| 15522 | 2002-04-12. Service bulletin. SUBJECT REGARDING DRIVEABILITY DIAGNOSTIC TROUBLE CODE LEAN CODES P0171/P0174. *YD |
| 01205 | 2002-02-26. Service bulletin. SOME VEHICLES MAY EXHIBIT VACUUM OR AIR LEAKS IN THE INTAKE MANIFOLD AND / OR ENGINE SYSTEM CAUSING DIAGNOSTIC TROUBLE CODES P0171 AND OR P0174. *TT |
| 14060 | 2000-07-27. Service bulletin. SOME VEHICLES MAY EXHIBIT MIL ILLUMINATION WITH DIAGNOSTIC TROUBLE CODES P0171/P0174. **MR |
| 8532 | 2000-07-26. Service bulletin. INFORMATION REGARDING MALFUNCTION INDICATOR LIGHTS P0171 / P0174. **MR |
9 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.