[s-cars] Problems today Audi 100S -- need some help with this...

[CyberPoet]

I went to do a spark plug, fuel filter, air filter change today on the
other half's 1993 Audi 100S (v6) and came across two different problems
on the driver's side of the engine. The first problem was that what
appears to be a PCV valve has a screw set into it where a hose to the
firewall connects to it (Marc gets a bit grumpier at the last owner),
and the second is that a 6" shielded wire from what appears to be the
brake fluid/pressure distribution unit is disconnected on the far end
and just hanging free. I've put more details and a few pictures of the
parts in question on a web page for anyone to access in reference to
this:

http://www.cyberpoet.net/audi/030126.html

My Bentley manuals won't be here for a couple weeks, so...
Specifically, I'm looking for the following information:
A. The VAG part number for the PCV Valve or whatever it is that some
@#$%& stuck a screw into.
B. What the connection from the PCV valve that currently has the screw
in normally goes to behind the firewall?
C. Where the other end of the wire from the brake distribution unit is
supposed to connect to (ground, a sensor, etc).

Any insights greatly appreciated :)
=-= Marc Glasgow