Hp Tuner question
I had a shop do a tune on my car and they used HP tuner. I want to know can I use my diablo sport to modify a stock tune on it and not totally hose their tune. For example if their tune is running, lean and it is, could I adjust it for richer and it would help. The reason I ask is their shop is over 2 hours away and I hate to run my car with it reading so lean on the fuel banks. They said they would fix it but getting their now is the issue.
"Z28 = first time I bought a new car just to strip parts for my current ride. GM needs to re-think restricted parts. "