misfire p0171
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Issue with 2004 expedition 5.4
Hello I’m new to this website and I’m very glad I found it. I’ve looked around here and found some things that could be the root of my issue but I’d figure I’d ask. First thing is it’s having a run in lean code on one bank and then a rich code on the other one. Along with a misfire on cylinder...- Outlooker65
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- 2004 expedition misfire p0171 running lean vaccum
- Replies: 6
- Forum: 2nd Gen - 2003 - 2006
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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
- Thread
- misfire p0171
- Replies: 3
- Forum: 1st Gen - 1997 - 2002
