well, still no luck after another 6 hours spent..
I have:
checked all intercooler hoses/clamps
checked all breather hoses/clamps
checked my HKS BOV
checked all intake hoses/clamps
re-cleaned AFM elements, connectors, and even took the covers off to look for dry solder joints
re-fitted the recirculation piping the way it was previously.
still idles rough, and hunts for revs at 1500rpm, and when i tap the accelerator, it stalls
anyone got any other ideas? its driving me nuts, and i want it running for the weekend!