We've been working with local and dealership mechanics on trying to get rid of the frustrating 171 (System too Lean) DTC, We've replaced the spark plugs, fuel injectors, exhaust manifold donut ring, both o2 sensors, new CatConverter, and cleaning out the throttle body and IACV.
I have ELM327 and Torque app and can see live data while car is running. Everything looks reasonable, but still the code returns after all but 2 monitors are complete testing.
have the same problem?
Monday, February 23rd, 2015 AT 4:12 PM