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.
"Dont need to be the fastest, Just faster then grampa who speeds ahead to go slow"