Car runs fine unless it sits for 30 minutes to an hour then it will start and just die after a few seconeds

It will start fine in the cold or when it hot out it will start fine if I park to fill up at a gas station but if it sits for more than 30 mins to an hour it will start and then just die after a few seconeds if I give it a little gas it will keep going untill about 30 seconeds then it will run fine again it smells like gas really strong if I give it gas to keep it runing I no the crank sensor will do something like this if it's bad but it's not firing on about 2 cylinders when it dose it and I don't know if my spark plugs are bad ill look at them tomorrow or if my injectors are like fluding them somehow I need help thou baddly in case it turns into a bigger problem.