When DPF pipe removed it did rev up, but it has a miss low down and no boost. When Cat removed no difference, but when EGR removed the full power returns.
I use Vaux com as its the same engine and it seems to comm ok, I have used it to do regens on this car and it operates egr and throttle body ok.
Went for injectors because my way of thinking is the engine is over fueling causing blue smoke and the egr is letting fumes in to inlet and causing engine to choke. I checked the engine breather and seems ok.
Shane