Re: Recently aquired 1994 S4

[Dave Lawson <dlawson@digitalglobe.com>]

>
> On the "back" side of the wastegate-valve there's a nozzle that looks
> like there suppose to be a small rubberhose connected to it, but theres
> nothing hooked to the nozzle? Is this an outlet for manual
> turbo-pressure gauge? (Theres a turbo-pressure measurement in the
> computer, not a manual gauge).

Nah.  The same wastegate is used in different cars, and some allow the computer 
more control over the wastegate by providing for it to switch either "boost" 
air or "vacuum" air into this rear chamber.
 
I'm surprised, actually, that it's not attached in a 1994 car ...
>

At one of the next thursday meetings, check under the hood of a 20V.
These guys have a freq valve, but it is attached to the lower portion
of the WG. It controls the boost level by changing the boost pressure
to the lower portion of the WG.
-
Dave