First off love the programer, But I do have a problem on my 07 5.9 quad cab. I have been running the economy performance tune with the r14 update, and I have had the highway speed buck or stumble. But the other day I had let the truck idle for about 15 min and when I went to pull away the trans slipped bad
. I removed the tune and put in the original back up and its good again. I have been running the per/eco tune for 2 week with no major problems till now and I have not drove the truck hard to speak of, Out side of the odd jump off a light. Any help would be great I would like to put a tune back in my truck soon.
