rkahoi

Hi all and happy new year to everyone..
So I have a 03 a6 3.0L 156k~ and a few weeks ago...MIL came on....pulled code it was p0345 camshaft position sensor a circuit (bank 2)...its a pretty easy sensor to get to and I had the time so, pulled it, bought a new one replaced it...code still wouldn't go away, cleared it, it came back...figured bad sensor...took it back got a new one...same deal...I switched the 2 cam sensors on bank 2 (shoulda done this before I bought a new one) and same thing...code remained the same..to add on car started running really rough...misfire on the whole of bank 2 (4,5,6)..switched coils and still the same... all misfiring and now P0021 Intake(A) Camshaft position timing - over-advanced (bank 2) popped up..
I really have no idea where to go from here or what I should be looking for or at so any suggestions would be appreciated.

Osmosis

did you clear the codes after you... installed the new sensor? Just a simple thought (or shot in the dark) to reboot the system.

rkahoi

Yes I cleared the codes...and car is borderline undriveable right now..

rkahoi

Also...does anyone know what this rubber hose is called or a part number..? I just noticed its split in the bottom and leaking oil but no part number on it...passenger side top of valve cover.

tester123

check camshaft position sensor as per manual.

Hard to tell what that hose is from the picture. Maybe a different or wider angle might help.

It could be coolant, or breather tube... remote possibility: fuel line (doubtful though).