How would you explain that? Another mystery under the hood.
I have a FMIC also so humidity shouldn't make that big of a difference. My MAF is clean.
What are the symptopmps of a faulty IAT?
How about old spark plugs - would they have anything to do with that ?

What are the symptopmps of a faulty IAT?
How about old spark plugs - would they have anything to do with that ?
