I drove my car to work this morning and it cuts off right at the traffic light. I try to restart it I I smell unbrnt fuel and some smoke from the exhaust. After about a cople of minutes I got the car to stay started and as I parkingmy car the things shuts off again plus it was idling pretty rough. I figured it might be the fuel pump or maybe bad injectors but I didn't smell gas under the hood when I lifted it. BTW checked I checked the MAF sensor yesterday evening and not sure if that might be a problem as well. Maybe you guys can offer some other diagnosis for this problem. Thanks.

James