Originally Posted by Jonzoso
I almost thought about having this, or another, tune done. Now I remember why I didn't. I'm sure GM spent more time and money on developing these ECM/TCMs than a couple of guys with a laptop and a garage. I feel sorry for you knowing that you have to take a brand new vehicle back to the dealership to be fixed.
If it's bad gas then it doesn't matter who programmed it. My Lincoln LS would knock all the time on various stations 91+. I'm not sure that discounting a sponsors work is necessary in this case....