Hi im new to hptuners.
Just recently i did a 4l70e to a 4l80e swap. I repinned the tranny harness to make the 4l80e work. i followed the pic and instructions. I also got a 4l80e segment and a tune file which belongs to an 07 tbss with a 4l80e swap also. i copy and pasted some parts of his file to my tune. the truck starts but shifts horribly in every gear. any help is greatly appreciated.
[IMG][/IMG]
on this second picture do only the top part with pin S and U. Make sure you do them right or you will be reading 20mph at idle.
as for the pigtail if your wires off the pigtail are not purple and white/light green black let me know.
Purple/White on pigtail goes to TransCon Orange Pin K
Light Green/Black on pigtail goes to TransCon Light Blue Pin V