Check engine lights are just there to set the mood.....was there a sexy looking woman sitting next to you? If so, that is why the light came on. Sometimes you need to reset your computer. To do that, hook up a jump pack or jumper cables to the vehicle. When resetting the computer, you have to attach the wires as follows.... Red to Black and Black to Red. Then start the car, if it doesn't start right away, just keep trying. The computer may be dirty, if so hose it down with water and try again.