Sorry to bother again, but I find it hard to beleive that I am the only one to notice this. I see all the threads where lots of guys are switching to the card style MAF for the older ecm but I noticed that the IAT that is built in is way off like even at 77 degrees in my shop it reades 97 to 99 degrees and gets worse from there if I plug the 03 maf back in it reads 77 rite on the money. And I even tryed a 2wire IAT out of a 94 LT-1 car and it reads 96 degrees the tables for a 08 iat are way diff then a 03 / 0411 ecm. I would like the IAT to read rite and I hate to have to run a seperate IAT that seems to be the easy way out to me and kinda dumb looking under the hood. Any ideas would be a big help thank you in advance.