So two days ago, I was in my car with some friends listening to music when we decided to go somewhere. Well I usually just flick the key to start because of the automatic starter and when the engine started it just died immediately and the check engine light came on. I don't know why so I just turned the key to off and restarted the car. It worked the but I wanted to know if I should be worried? I haven't had any previous issues in the year I've owned the car.