Well i just dropped an engine in my car yesterday and finally got it to turn over today. Anyway I drove good for like 4 hrs and then i was driving the car and it suddenly just turns off. The check engine light comes on and my car will not start up. To make a long story short i started hiting the starter and started up again and i drove it home. On the way home the CEL was on the whole time and the rpms where going all over the place but the car was reving any different. I get no codes when the car is off. The check engine light only comes on when i start the car.