Help a new guy out!
I have a 2012 sierra 5.3, 6 spd auto - new to tuning.
Make a long story short, the lack of throttle response from the vehicle off the lot got me wanting to make some changes. It drove like a turd at part throttle.
I started doing a lot of reading on the forum, I found a tune that sounded like what I was looking for and did some borrowing off of that (in fear that I'd ruin something if I just went at it totally on my own) and have been using that as a base.
Overall, the truck drives so much better. However the problem I'm having is that the 3-4 shift at mid-throttle is awful. It is real slow. Can some knowledgeable people take a look at the log/tune and offer some thoughts?
I know the log is kind of long: the 3-4 shifts can be found at
3:56
4:47
6:05
I don't currently have a wideband hooked up, I hope to get that done in the next few weeks.