Customer brought me his truck cuz it started what sounds like hitting limp mode. Truck has twin turbos and a DSP5 switch. Tunes were bought from a tunner in the states and he put them in with his own controller. Problem I have is when I conect to his truck in the scan tool it doesnt read his os or the vin. None of the pids are valid. could it be he was useing an old version of efi live and mine wont read it. Or could is it just locked? Ive never had this issue with a DSP 5 before.