Have a 1999 expedition with check engine light on. Codes are PO171 system too lean bank one, also getting code PO174 system too lean bank two. I have replaced all 4 O2 sensors, fuel filter, plugs, wires, air filter. HEEELPPPP
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.