Ok guys heres the deal with my Van.
Go out in the morning and it fires right up, pulls strong and idles good. 5 mins later It bogs down so I have to keep one foot on the gas one on the brakes to keep the revs up. Even then it has a tendency to die, acceleration is nadda. It stumbles and stutters under any but the lightest load on the gas peddle. If or when it does die then it takes 10 mins before it starts again. Once it starts it runs great the rest of the day no problem till the next morning and it begins all over again. Just put a new muffler in thinking it could be back pressure, swaped out the cold start injector too. I also pulled all the plugs and looked like they had be firing fine, all the same color and look to the plugs. As I type this Im waiting now to go out and try to restart it. I searched last night but couldnt find anything. Please guys any help would be much appreciated.