Strange Problem?

[VBasso]

I have checked for boost leaks, I couldn't find anything major, small leak right at the throttle plate but it's had that since I got it. I've fiddled around with the BISS screw some and I think it is set at a pretty reasonable level right now. This is the maroon one.

[VBasso]

Well it acually decided to start last night, lots of idle surging at first but then it settled down somewhat once warmed up. It seemed to be running fine on a short little drive except for running pig stinking rich the whole time. Any further insight from anyone? I'm really hoping I can find someone who has experienced this problem or knows someone who has, its really baffling me so ask your DSM friends if you could.