Man that sounds frustrating! A couple of thoughts:1.Double check the signal line from the IC pressure side and make sure its going to the inlet port on the Profec,ie. could you have lines reversed? 2. Call Greddy tomorrow and make sure the switches on the back of the controller box are switched correctly. I have a Profec B, and I'd check my destructions for you but they are in Japanese. All the folks I know who use them (about 6) are really happy with them. It's possible you have a defective unit. By the way, I lost an engine running 15psi on pump gas (shitty california gas). Good luck, Mark