In case anyone was curious, the lean code was due to the 1999 fuel injectors being only 19.8lb/hr, but the 12212156 OS being cal’d for 25lb/hr. I swapped in my parts trucks good condition injectors,...

Thanks pal, I went ahead and flashed in the 12212156 so, it’s running great! Only issue I’m having is a PO171 and PO174 code. This never showed up prior to the OS swap, could it possibly be a...

Hey, if I used this XDF without moving the plug-in properly at first, will it ruin the file? I realized my mistake and moved the plug-in into the tunerpro folder, and then continued. When I load my...