A while after having had my Golf Turbo Revo remapped i have experienced problems after 3000 revs as the car judders and it seems like it is not getting enough fuel. I have changed the 4 coil packs, spark plugs, air mass meter, the sensor on the air box fuel filter and the recirculating dump valve but the problem is still there. I have had a rolling road check which showed 166bhp but it should be 195bhp with the Revo. Has anyone got any suggestions on what this could be as i am running out of ideas.