sorry if this post is somewhere else, but ive looked and im about to go crazy trying to figure this out. My truck does this the majority of the time. When i start it up and try to accelerate it bogs down really bad. Then when im going down the road it will just fall on its ass all of the sudden. Its not the tps, mas, plugs, plug wires, dis cap, rotary button, bad gas, throttle body, air filter, stopped up intake, or my muffler. Any more suggestions? Ive tried so many things and cant figure it out. Maybe the EGR vavle getting turned on at the wrong time?