Im sorry, I wouldnt allow someone to tune my car if they have no clue what a run-on sentence is. This may help you out some.
Punctation
If he seriously had a problem with it he should have immediately gone back to the shop. Now that you have done something to it, I feel as if its totally out of their hands now. You have interfered with the original tune which makes it no longer their tune. If something happens to the car, its YOUR fault.
This is also my
