hi again, i made and fitted a blanking plate on my 2.2dti. there was a small gap on the front lip if the plate to let in some air, but had the emissions light stay on and had no power, i drilled a 3mm hole with no lights for a while, i also had the power back, but it deteriorated and then cut out. so i have been increasing the hole size but it seems to be getting worse, could this just be a coincidence. should i keep increasing the hole size and if i do when do i stop. may i ad that the car can run all day every day with the wiring of the egr valve disconnected.(just like an old diesel)im actually getting used to it. a bit of power would be nice though. heres hoping you experts can help.