Great!. I was hoping it would be that simple. I am a master carpenter and pretty good at what I do but I know very,...very little about motors and how to tune them. That's why I chose the Diablo tuner because of the preset tunes. I just wanted to add a bit more power and turn the AFM off on the ...

I know I need to go to the modify stock tune in the tcm menu. I was wondering if I needed to go through the ecm set up again or could I just skip the ecm setup because it's right where I want it, and go straight to tcm.
Now that I've been running with the firm shift for several days now, I'm getting ...

So, can I just go to TCM and select modify stock then install tune or do I need to go through the ECM menu also?

This is my first programmer and it works great. It was very easy to install and the truck is running perfectly.
I installed the 91 easy program with firm shift and turned the AFM off. I'd like to return to the factory shift and keep all of the other changes. Do I need to reinstall the factory tune ...