[s-cars] Help with Pressure testing

[Dave Forgie]

S-gruppees:  It finally stopped raining here in Vancouver and the sun
came out (after it burned off the fog).  I decided to pass on lawn
mowing and finally pressure test the intake hoses on my 93 S4.  I built
an inlet hose plug from a suitably sized tin can and a Shrader
(Shroeder?) air valve.  I knew that I had to plug the cam cover breather
so I removed the hose from the cover (at the front of the engine) and
used a champagne cork (and the gear clamp) to plug the hose..  Started
Test No. 1 - couldn't get any pressure but smelled oil.  Put finger over
the metal cam cover breather tube.  Slight pressure.  Decide that I need
to plug something else.  Figure its the bottom hose on the idle
stabilizer valve (ISV).  Remove and plug hose with a wine cork (and the
gear clamp). (Note: all corks were previously used and not fresh from
the bottle).  Test No. 2-  nothing.  Not a sausage (as the Brits say).
I either have a problem with my test apparatus (I am going to find a
plastic plug for the big end) OR, more likely, I am doing something
wrong.  Do I need to also remove the hose from the throttle body and
plug it?? I had assumed that there was no overlap on the cam lobes and
all cylinders were "sealed".  Seems like this could be my mistake.  Any
BTDT's (where is the tech FAQ on this??)???  Help!  (Please).

Dave F.