recently had my 57 plate scudo taxi in for the egr cleaning out and new fuel filter, it was usin loadsa diesel and revving itself up and also had really bad flat spot when changin from 1st to 2nd gear, the egr was black as hell and so was fuel filter, hoping to notice a diffrence in all of the above when i got it baCK i was dissapointed that it was no diffrent at all, i know he definatly changed the filter and cleaned the egr as he showed me the pics of the before and after and showed me the old fuel filter, my question is does the egr need re setting and if so how , a mechanic once told me something about revving the ass of it so many times or something , HELPPPPPPPPP 
