Thanks for all your replies. I'm going back to the store, and hopefully they can read what codes it is throwing. I think that SRT-6 Steve, was right on when he said " I gave it full throttle, the car almost died, then picks back up", that is exactly how it felt. How do I do throttle reset the easiest way, and is there a way to determine that it has been done successfully? The other thing is that since my "shakes" today on the freeway my "check engine" light has constantly been on, is there a way to reset it as well? Thanks again!