Hello all, just looking for a few tips to do with the egr valve on an 03 1.9 td vectra, as soon as it goes above 70 the management light comes on and it goes into limp mode. i've had it in at the dealers and they done a diagnostic on it which said the egr which they removed and cleaned, still doing the same thing they also quoted 300 notes for a new one. now for my questions.
1. is it an easy enough job to do myself?
2.where's the best place to get the part from?
3.any tips on how to do it?

any help would be much appreciated cheers.