Having a bit of a nightmare with my S3 :(
Recently had the top end rebuilt after finding second gear rather 4th. Spat the cam followers off with minimal damage. Anyway, had the head stripped and rebuilt and picked car up on Thursday. Car seemed to run fine, albeit a touch laggy and flat at the top end. Anyway, 15 miles ish into having the car back the CEL light came on. I've had a Snapon Diagnostic machine plumbed in to find it give fault code P000A. Something to do with the intake cam adjustment valve operating too slow. We cleared the code and now the car is really really flat...ie feels like NO boost even though you can hear turbo spool up. CEL light is yet to come back on.
Anyone any ideas? Would replacing the valve cure this problem? Any help greatly appreciated