Ricardo Navarro
New Member
I need help with this code P0171 and P0174
P0171 AND P0174
- Thread starter Ricardo Navarro
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what year & engine expy?
click on this link for typical cause --> OBDII reader | Ford Expedition Forum
click on this link for typical cause --> OBDII reader | Ford Expedition Forum
Last edited:
riphip
Full Access Members
If 2003-2006
Could be EGR, dirty MAF, OR just vacuum hose(s) leaking
Could be EGR, dirty MAF, OR just vacuum hose(s) leaking
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