jimmyg

I'm using a tci ez tcu with a 4l80 . Can't get in to go into performance mode . I'm thinking it's the same as tow/haul . Maybe pressure control soliniod wired wrong? Is this even possible? Going to put line gauge on it Thursday but it's been buggin me .car is not shifting right been trying to dial it in . It almost acts like it's stuck in tow mode