Don't know if anyone has seen these issues before but I have recently installed the Allard delete pipe to take out the EGR Valve as I was having a lot of issues with idle and black smoke. I thought I had installed it perfectly but seem to have lost power, the car is revving but going no where, I can hear the turbo spinning up. I have checked everything again as per the instructions and all seems pretty good. I am yet to make the VAGCOM changes but didnt think this would impact performance at all just the error on the dash. Can anyone point me in the right direction?