Am getting code p0171 and po174 says banks lean what does that mean
Sunday, January 9th, 2011 AT 5:24 PM
2 Replies
RASMATAZ
MECHANIC
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.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, January 9th, 2011 AT 5:37 PM
WRENCHTECH
MECHANIC
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.