Usshift quick1 help
#1
Usshift quick1 help
I have a built 4l80e with multi disc lock up convert.I installed the usshift quick 1 box amd have it set up. I am using the 4l80e normal program. It is giving me a F:rs code in 3rd gear only. It shifts in third and holds it till 4th is commanded. I have replaced all the electrical stuff in the trans still same fault. I am running a holley hp efi to control motor. In settings do i have to change anything? I changed my gear ratio and set my tps but left everything else alone.Fluid is clean and not burnt reverse works fine. Any ideas? It has jakes d1 brake also.