We just purchased a 1998 Chevy Cavalier last week for my daughter, it has 65,000 miles. It has been driving fine, except today the ETS light went on, it was sluggish and then the car died.. the engine light went on, oil etc. She started it up again and parked it, but what would make this ETS light go on all of a sudden. It was raining out, but she didn't skid or anything. Any help would be appreciated