Matt_l

I just swapped my 4l60e for a 4l80e. It is a newly built monster 4l80e with a circle D converter. I modified the wire harness per the sloppy mechanic wiki. When I took it out for its first drive, it went into reverse well and backed out of the garage, but when I put it in drive to pull out of the driveway it shifted to second and then third at a very low speed and bogged so bad it stalled. Does this sound like a tune issue or a wire harness setup issue? I also copied the transmission tune from the sloppy wiki for the don't bs build. Tune attached.

Any help would be greatly appreciated. This is my first attempt at tuning a motor and trans.

oange ss

iTrader: (50)

did you perform segment swap for the 4L80E?

Matt_l

I did not do a segment swap. I did not know that option existed. I just watched the YouTube on how to do it. I will give it a try tonight.

Thank you!

Matt

Matt_l

Thanks @oange ss, The segment swap did the trick. Unfortunately I had to burn a couple credits because I had the OS that was not compatible with any 4l80, but other than that, it worked like a champ. Now the real work of tuning begins....