Still at it huh? By now my wife would have found me giggling and rocking back in forth in a lawn chair, sitting next to my car while it's fully engulfed in flames. Wish I was local to you, in sorting out my bugs on the turbo swap I had a friend loan me a $3k Snap-On brand tester. That thing checks everything! Plugs in to the test port that's mounted on the back side of the driver side shock tower. I'd say we could pin something down with that beast. All of my issues were vacuum related. Keep us posted!