read this car for brother in law and posted file it was a badly tuned revo map , but after just reading car no power . wrote file back to car after reading it still the same . got another tune file to try car has power upto around 3500 rpm then there seems to be a slight blip in the revs and the power is gone like the turbo has just disappeared . not limp mode its like fuel delivery has been cut low . changed plugs ,coil packs , n75 , uprated dump valve still the same , wrote virgin eeprom to ecu and adapted it with vcds . stumped basically ! could someone check the file to see if it can be sorted or if anything has been missed .

thanks

excellent explains it all thanks