Originally Posted by taosx5

Thanks CN90.

I have done so much reading and research the last few weeks I can't remember what I have read.

Today I changed fuel filters on both, installed a new MAF on the 4.6. For some crazy a$$ reason the thing short circuits MAFs if you get into the throttle hard. (I have a Dinan CAI). A friend drove it a couple of weeks ago and got into it pretty hard and sure enough it threw a P0120 (it think that;s what it was) code. I found a new Bosch MAF from AIP Electronics for $40. I searched the web and could not find one for under $100 bucks. Code has gone away and not come back.