Quote:
Originally Posted by E92William
Following the pcv piping and plugging the holes in the manifold I've encountered this entry into the neck where the throttle body mounts on my 3 stage manifold. Where does it go? I haven't checked on my 328i so idk if it even has it but it seems like some kind of drain, wonder if it goes down to the oil pan or something. It seems to have some electric actuator.
Can't find it on realoem
This is a picture I found online of the same thing
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That is the fuel tank vent.