OK folks no need to argue. For starters what exactly is the egr? The tandem pump pressure loss that a8tech has said, what is that? Is it to do with the fuel injection system??
I do not have any warning lights yet so why should I disconnect a pipe to make one come on. Surely the Audi stealers will suspect that one? I am not getting much luck from them at the mo but I know something is not quite right with my so called Vorsprung Durch Technik engine!!
