Quote Originally Posted by Wakingcrow View Post
Yeah I was trying to avoid the map sensor purchase. I swapped the map and maf since they're the same, and no change so I almost ruled it out unless they're both bad. That's the first thing I did. I couldn't find matching at junkyard because no supercharged there.
What year is your car? The map and MAF are not the same sensor. The MAF has a protrusion that goes 2/3 of the way into the throttle body on most if not all of the pre- 04 3800's and should be the same maf, supercharged or not. The map is not only shaped differently, it functions differently. The quick way to test one with out a code reader/multi-meter, is how I indicated in my last post.