MAF leak casue "too lean code"?
So if that is true, I can eliminate the possiblity of a vacume leak since I would expect that I would give me a "too lean Bank 1" and "too lean Bank 2" code at the same time.
Is this correct?
It depends on where the leak is.
If the leak happens to be only on one side of the intake, or in a valve, or something that doesnt share the main inlet that is going to both banks.

