My check engine line has been on for awhile but.

My check engine line has been on for awhile but no noticable problems. Today while waiting for daughter to come out my car died. I tried to restart several times and it was finally ok. I went less than half a mile and my car died while merging. It was very hard to turn the wheel. I got to the side of the road and restarted my car again. I took it to Pepboys they said it may be the alternator but 7codes came up and mention coils. They did not have to repair and asked I leave the car. I was 50 miles from home and could not do that. I made it home safelybut now I am scared to drive it. I'm debating buying another car due to the miles