First off i want to say that yes, I did search, and the results i got were for mk3 applications.
With that said, I have an AEG engine with about 98k on the engine and im pretty sure the vavle behind the throttle body for the seconday air injection system is bad. my cold start it pretty rough and the vavle makes a bad noise. To my understanding these air pumps only serve to lower the emissions during startup because of the rich mixture. I read in the mk3 post that using vag com you can make the ECU think it doesnt exsist. Is this possible to do on an mk4? and if so, would i just remove the pump unit and hoses, and the valve off the heat shield and plug the hole? thanks for any help [IMG]http://*****************.com/smile/emthup.gif[/IMG]