Help please, P0171, changed MAF, Bigger Problem!
So my guess at the problem was correct, Someone put a screw in the top of the fuel pressure regulator, changed it today, and it runs like a brand new ralliart!

Car is Fixed!
I would recommend only using the stock MAF, pipe diameter, signal increments, and sine all play a very important role, in the ECU's tuning ability... changing to a MAF that is calibrated differently could be devastating, they could make you run too lean, too rich, or just poorly in general, check the oem part number and go from there. Please ask your question again by starting a thread in https://www.evolutionm.net/forums/04...ions-tips-126/ Someone else may be able to give you better advice there.
Thread
Thread Starter
Forum
Replies
Last Post




