My truck feels like it misses on the highway...and it ONLY happens when the AC or fan w/inside recirculate is on. Some one told me that the computer pulls timing when the AC compressor is on. Is there any way in EFI live to disable this? And also, why does it do it in the first place? It is really annoying. I never recall my truck doing it before I started modding it and using different than the original stock tune. Thanks.