I have an 'egr valve fault implausible signal' on my printout - i did have an engine light on, but it's gone off now after reset.
I have rough idle and kangaroo petrol when pulling away in traffic (mind, i've not driven a petrol for a long time - perhaps thats my lack of clutch control!). So no engine light but missing. Is this the EGR valve? Can you clean the 'pipes'? I also have a knocking noise the garage thought was a broken exhaust bracket - could that be connected?
Phil