4l80e swaped but wont down shift
Thread Starter
TECH Resident
Joined: Jul 2010
Posts: 905
Likes: 0
From: VA
4l80e swaped but wont down shift so i was reading this thread here..
https://ls1tech.com/forums/automatic...ap-issues.html
and this is exactly what mines doing, this is my set up
6.0L out of a 2000 2500hd
4l80e out of a 2001 2500hd
harness out of a 2002 2500hd
ecu out of a 2000 1500 5.3L/4l60E truck
so i was reading the above thread and some others and it sounds like a 4l60e tuned ecu is not compatible with a 4l80e transmission with out a complete retune.
is there a thread or can some one give me a list to what i need to make sure is changed in my tune to get my transmission to work correctly, i have a dakota digital pulse generator and that all seems to be working fine
with a 2500hd harness and a 4l60e ecu do i need to rewire something?
is there a list of DTCs and or other things i need to disable or change?
thanks!!
https://ls1tech.com/forums/automatic...ap-issues.html
and this is exactly what mines doing, this is my set up
6.0L out of a 2000 2500hd
4l80e out of a 2001 2500hd
harness out of a 2002 2500hd
ecu out of a 2000 1500 5.3L/4l60E truck
so i was reading the above thread and some others and it sounds like a 4l60e tuned ecu is not compatible with a 4l80e transmission with out a complete retune.
is there a thread or can some one give me a list to what i need to make sure is changed in my tune to get my transmission to work correctly, i have a dakota digital pulse generator and that all seems to be working fine
with a 2500hd harness and a 4l60e ecu do i need to rewire something?
is there a list of DTCs and or other things i need to disable or change?
thanks!!
Teching In
Joined: Jan 2016
Posts: 6
Likes: 0
From: North Texas/Sometimes Mexico
https://ls1tech.com/forums/automatic...-required.html
This will correct the wiring to run a stock 60 PCM.
This will correct the wiring to run a stock 60 PCM.
