I am not sure if it has been mentioned already but have you checked the injector pump arm is hitting the max stop when the throttle pedal is at the floor?
I have seen TDI is struggle with power problems and throat alarm is running out of 22203 mm before the stop screw on the injection pump
I have seen TDI is struggle with power problems and throat alarm is running out of 22203 mm before the stop screw on the injection pump
