One of my friends use the reset button when he red lined his Mach. I mean he burried the needle in the red. Apparently the computer cuts fuel so that things inside the engine don't fly arpart from going to fast. I also, think that accident part is true. Anyway he didint know about the button in the back of the truck. Car wouldnt start so he had to have it towed back home. Hope this hasnt happend to any of you.