Some of us who converted to the card style MAF LS3/7 etc are having issues with IAT not reading ambient even when pasting the correct IAT tables I have found that subtracting 12 on the IAT table gets my IAT at ambient with key on and engine off so that may work for some of you folks others it might not. If you have another solution for your platform please post below. I am running E40/LS4 but should also work for the LS2 guys as well