I have 2003 a6 quattro with 3.0l. At the moment when i start the car it goes to about 4k rpm and than it drops to about 1200rpm and gradually within couple of seconds drops down to zero and cuts off. the only code it has at the moment is P0023 which is bank 2 exhaust camshaft oil control valve (OCV) or (VVT). I'm trying to figure out where it is located to see how hard it would be to do it myself. Any one has any idea please let me know. An yes, before i posted I've searched the forum and couldn't find anything on this code. Any help will be appreciated.