Just a couple of quick questions
1.How many miles on the truck
2.Have you had a throttle cleaning service or a fuel service done recently or lately?
But most importantly,,how many miles.I saw a lot of this when I worked at dealerships in Wa. state,,,especially vehicles coming in from Canada,because of the road salt,the fuel tanks and the filler pipes,build up a lot of rust and it piles up in the bottom of the tank,,,and then if you do a fuel system service,the fuel filter can't clean it all up,,so it gets dumped into the fuel rails and lodges in the back of the rail,,until you make turns and then it clogs the injectors,,,sounds nuts,,,but I would clean the rails and the problem would stop.Just a thought