replaced aos still smoking, please help :-)

[barks]

hi,
just a quick question,
ive just been on the phone to porsche to order the pipe and pcv,

they say it isnt a pcv its just a connection piece?
ive read that the pcv can stick open?

is it a pcv or a connection piece?, anyone know for definate?
its on the end of the long vent line that goes to the aos, connects onto the top o the cam cover passenger side.

cheers
barks