hi everyone, my vr started to run a bit lumpy, so i started with the usual suspects by changing the plugs and leads, this helped but it still wasn't right so i looked at the coil pack and that was corroded so i replaced it, but still no change, i then went on to change the ecu relay and then the fuel pump relay, still lumpy :@ When i say lumpy it seems to be ok after 4000 rpm but until then gti boys are chewing on my arse :@ So i thought it can only be the air flow meter as everything else is new, so with the engine running i un plugged the sensor plug and it made no difference to the way it