2011 4.8L 1500 4x4 stalls once truck is at operating temp

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Jvs2022

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I have a 2011 4.8L 1500 4x4 and recently had a rebuilt motor done. When I picked the truck up from engine rebuild the idle would circulate from 500-1000rpms no stop the whole drive home about 30miles. Call them up and brought it back the next morning they changed the map sensor. Truck still doing the circulating idle. Call them back said to bring it down went the next morning said they couldn't take it need to make an appointment. my appointment was a week later guy says its the map sensor again and want to charge me. Nope I cool I go back home put the scanner to it and I'm getting a random misfire and fuel pressure to low no map sensor code. start to look for issue thinking its a vacuum leak or injector issue. drive myself nuts for a week looking for a vacuum leak and take it to mechanic different from engine rebuild. Com to find out engine guy torqued intake manifold bolts down to much boke 3 off and cracked manifold. I order new on e put on myself truck runs great for 3 days. Get engine light cam shaft sensor not plausible. switch it out truck runs one day then on the way to work come to a stop at a traffic light truck stalls wont start, try for 20 mins finally fire up. On the way home trucks stalls 2 times and take 20mins to start both times. get it home now its a crankshaft sensor. I replace drives good one day then stalls again and can restart. I take it to mechanic again replaces crankshaft sensor does a relearn on sensor and I drive it 1 day same thing stalls mechanic ends up changes crankshaft sensor 2 more times so I figure its got to be a wiring harness replace harness still crank shaft sensor not plausible code on way home from picking up after wiring harness installed. Take it back puts oem sensor in and same code pops up on second drive after picking it up. Any ideas what is wrong here? Truck runs great no power loss but once its and a running temp idle will start to circulate and as soon as I lay off the gas pedel coming to a light or a very slow turn truck stalls and wont start. I can clear code sometimes and it will fire right back up others I clear itand have to wait 30 mins before it starts again. Any help or ideas would be greatly appreciated Thanks in advance
 
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What are the current codes?
Have you checked the fuel pressure regulator vacuum line for gasoline?
Have you done a fuel pressure test including how long pressure holds after shutting off the engine?
 
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