# P0174 on the 1999 Ford F\-150

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.

## Bulletins for this model year that name P0174

- [10003171](https://open.wenmarpro.com/bulletins/10003171), 2003-10-10: MALFUNCTION INDICATOR LAMP \(MIL\) ON WITH DIAGNOSTIC TROUBLE CODES \(DTC\) P0171, OR P0174. F150 LIGHTING AND F150 HARLEY DAVIDSON SUPERCREW. \*TT
- [636208](https://open.wenmarpro.com/bulletins/636208), 2002-11-06: SOME LIGHTNING AND HARLEY DAVIDSON SUPERCREWS MAY EXHIBIT CHECK ENGINE LIGHT ILLUMINATION WITH DIAGNOSTIC TROUBLE CODES P0171 OR P0174. \*TT
- [627927](https://open.wenmarpro.com/bulletins/627927), 2002-02-26: 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
- [618591](https://open.wenmarpro.com/bulletins/618591), 2001-04-17: CONCERNS WITH MALFUNCTION INDICATOR LAMP \(MIL\) ILLUMINATION AND DIAGNOSTIC TROUBLE CODE \(DTC\) P0171 AND / OR P0174 STORED IN MEMORY. \*JB