here you go buddy
http://i46.tinypic.com/i3xool.jpg

on that pic as you can see the electrical connection to the AAV is heavily corroded. I cleaned it but haven't checked it with multimeter yet. But after assembling I still have the same issues you have. I have yet to check the WUR (I suggest you do the same). If you disassemble the inlet fuel line to WUR (at WUR side) you should see a tiny filter in WUR which also may cause problems when full of dirt. But you should also check the cold-start injector electrical connection. That injector is also a common culprit for difficult cold starting problems.