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P0171 code only need help!!!
I have a 99 expedition 5.4 eddie bower 4x4 and i can not figure out this lean condition on bank one ive replaced pcv because of oil in the throttle body the fuel injectors i got good fuel pressure i ran a smoke test and found smoke coming out of the cap of the IAC so i replaced that and i...- Joshua Ballard
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- misfire p0171
- Replies: 3
- Forum: 1st Gen Ford Expedition Engine & Performance
