When it is cold it will start and run for about five minutes then shut off like you turned the switch off then it won't start again until it sits for a couple of hours. If I keep the rpm's up to about 2000 it will sputter and keep running. Then after it gets warmed up it will stay running as long as I keep the rpm's above 1500. It tries to stall when taking off sometimes but not allways. after I shut it off it will start back up if I start it within a few minutes but if I wait about thirty minutes it won't start and I have to wait about three hours for it to cool down then it will start again. contact Curtis at [email protected]

First, if it is running that bad with the spitting and sputtering and all, the Check Engine light has GOT to be SCREAMING at you! If so, then that would be the first step. Get your engine computer scanned to find out why the Check Engine light is on.
If the Check Engine light is for some odd reason, not getting involved in this, I would still start with a scan and then watch the data stream to see what is going away to make the engine act the way it is. It sounds like you probably have a bad Crankshaft Position Sensor, but I would not go out and buy a new one before checking for other possibilities.

Please also review this article: What Else Could Be Wrong?