am getting code p0171 and po174 says banks lean what does that mean
Jan 9, 2011 at 5:24 PM
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This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
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RASMATAZ
AUTOMOTIVE REPAIR CONTRIBUTOR
75,992 POSTS
Lean fuel condition could be caused by one of the following below:
1.Vacuum leaks
2.EGR and PCV valve.
3.Low fuel pressure.
4.Dirty fuel injectors.
5.Mass Air Flow Sensor.
6.Oxygen Sensor.
Jan 9, 2011 at 5:37 PM
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WRENCHTECH
AUTOMOTIVE REPAIR CONTRIBUTOR
20,761 POSTS
I have found on those Fords that it's very common for the rubber hoses or connectors to suck a hole right through them. Listen for a hissing noise and follow it to it's source.