ok to start off i did a Trick Performance front mount turbo setup about 4 monthes ago including a couple supporting fuel mods, walbro 255 fuel pump, 44lbs injectors. The truck has done flawless up untill yesterday i poped the code p2635 and p069e and my exhaust went from a full healthy sound to a hollow empty sound with a little hesitation. With all this being said it still runs great and feels right it just sounds like hell and is pulling codes. So today i put a new pump in and i still have the same problem. could it possibly my tune and it reacting weird with the Fuel Pump Control Module.