okay, thanks for the suggestions, I've tried all those now. I dont know if I told when it went bad. maybe this'll raise another idea out there. I always run my truck on mild. (H&S xrt pro). It worked great for a week, then on the weekend I turned it up to wild. Worked for about a day, then the turbo started acting up. I changed the new acturator out for my old one, tried putting the truck back to stock and reprogramming it again. Didnt work. Now the only code that comes up says mass air flow input low. One more question and this shows my stupidity just cause of how I have to ask it. On the top of the air intake(were the change filter gauge is) there are two sensors. If you look on the inside, one is just a short little wire gaurded by about 1/2 inch of plastic, the other one looks kinda like a white plastic scoop about 1 1/2 inch long. Does that big one have a little wire on the side of it? It looks like there are a number of little clips for one, but there's no wire there. Just wondered if mine broke and maaayyybeee could be causing some problemos? I've also read somewhere that there are a number of things that could malfunction to cause the vgt not to cycle, but I cant remember what they were or where I found them. :S: