Yep, i disconnected my FCD today for the hell of it, and damn, at first it was awsome, but on the highway, it hit fuel cut just like your guy's did. About 2-4 psi, in 5th or 4th, car jerked hard! The missing link is on its way, should be here on Thursday..cant wait to finally get this running strong at 8 or 9 psi :) And as a side note, i kept the ignition on and measured the map voltage at about 4.1 volts, then cut the red wire on the FCD, then volts went up right away to 4.54 volts..haha..is it just me, or am i thinking the only thing left that is part of the "Hahn" kit anymore, is the damn turbo and the manifold? hmm...i've replaced damn near everything else that came in the kit! :(