Mecahanical
825

Asked by Trent Mar 26, 2018 at 08:21 PM about the 1999 Honda Civic LX

Question type: Maintenance & Repair

Im getting fuel trim lean codes.   Two of them.  
P0170 p0171.Car does sounds like its running a Lil
lean.  Two new 02 sensors on it.  New exhaust and
manifold.  Any ideas

3 Answers
825

Trent answered 6 years ago

Id considered that. I'm just not sure why a vaccume leak would cause that and were it may be.

Mark helpful

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