So, still trying to track down stalling issue (more here->
Engine stalls once warm...). I've tested most of the system, and everything is within spec. What several people have said, and I am leaning towards now is a mysterious vacuum leak somewhere.
Video to follow, here is what I've done.
1.)Hooked my DIY intake pressure tester up directly to the intake of the turbo (airbox and accessories removed).
2.)Plugged the PCV hose (valve cover-to-intake hose)
3.)Plugged the idle air intake controller hose.
I cranked up the air compressor and set the regulator to somewhere between 15-20psi.
I also borrowed a squirt bottle and some "Super Magic Bubbles" from my daughter.
I felt around and listened, found a couple of small semi-leaks around the intercooler piping, pretty much all went away after tightening the clamps down again.
I could still hear hissing, so I kept touch hoses and listening. Finally I pinched the valve-cover-to-throttle-body hose, and the hissing dropped by a good 80%. I also sprayed some bubbly goodness on the top of the TB, and noticed very tine (looks like hydrogen peroxide on a cut) pools of bubbles forming very slowly along the TB/intake manifold seam.
Watch the video, around 17 seconds or so, you'll hear the difference in sound as I clamp the hose. you'll see the bubbles I mentions around 40 seconds or so. Keep in mind those took a while to show up.
So, am I doing it right, does the system sound normal? Is the TB pressurizing the valve cover, and the gasket is shot and that is where my leak is coming from? Argghh....
(Sorry for the video quality)