Here's the deal... I have a K04 with supporting mods, TP, FMI, injectors, REVO software ect...

On hot days, when I've been driving for at least 15 min. with the a/c on, my boost gauge indicates that I am only hitting 8 to 10 lbs of boost. The car feels fine, power seems to be there, and no CEL when vaged. When the A/C is off, my gauge shows that I'm hitting 22 lbs of boost and holding at 15-17 as normal.

any idea whats goning on???