4L80e problems

[Ctinman]

Originally Posted by Custom 68

Yes it will or should anyway. I am sure they know what they are doing but there is what they call a segment swap in HP tuners. If they are going to use the same tune they will need to do this swap. I am sure they have done lots.
In addition to that did you use a wiring harness for the 4l80e, they are different than the 4l60e.

Yes, I am using a 6 liter 4l80 harness. Can't wait to get the ecu back and drive the truck. I've been working on it all year. Thank you for the help. I'll be sure to let you know if this fixes the problem.