WTF? steady pace, engine light comes on. gases and car bogs, boost only like 3 or 4psi only. let off gass, engine light goes away and i can boost again to my usual 20psi. run at steady pace again, comes back!!!!! WTF???? no codes or anything. is this the EGR doing this to me??? only thing left i can think of. checked out everything else. how do you fix this without replacing the part??? just been acting up this week!!!!! ehlp!!!!