Hi I posted a thread a few weeks ago regarding a lumpy/rough idle on my A4 2.0TDi 55 plate. No one to date has recognised this fault other than similar faults so I am going to attempt to block off the EGR valve. I have been told to do this at the inlet manifold side as opposed to the valve itself. Anyone know of how to go about this job and is it a problem to leave it blocked off?
Many thanks!