Hi if egr faulty,been advised lack of power i have ,petrol down also,would idle be iratic sometimes like mine,some times a bit white smoke.
EGR faults do cause some of the faults that you mention.
Look at: http://www.motor.org.uk/documentlibrary/May%202010/Tech%20Talk%20May%2010.pdf
This gives you all you want about EGR valves etc.
Edited by oilrag on 03/07/2010 at 07:47