2004 F150 with codes: P0171, P0174, P0191, P0301

SoldierKhakiman · **Joined:** Fri Mar 06, 2009 4:05 pm **Posts:** 1

I recently was driving from San Angelo, Texas to Fort Hood, Texas... about a 158mile drive. While driving, my 2004 F150 FX4 started to sputter and felt as if it wanted to shut off and the Emission System Light stays on. The slower i went the less that it would sputter if any. It usually started if I went up to 70mph. Occasionally it does it at lower mph. I took it to my local auto parts store and got a diagnostic. The codes came out as P0171, P0174, P0191, P0301.

Has anyone ever had this problem before or something very similar to this???
And if so what was done to correct it?
Any help would be greatly appreciated.

Thank you,
-Josh

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

Mohawkmtrs · **Posted:** Sun Mar 08, 2009 6:59 am

Check fuel pressure.

2004 F150 with codes: P0171, P0174, P0191, P0301

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