Apexi S-AFCII Problems

I just got a S-AFCII installed today and now my car won't go over 3K RPM. I set the diagnostics to the books specs but it felt like the fuel cut off was kicking in. I was afraid to mess with the thing so I unplugged it but the car still does the same thing. Any one know what I should set the diagnostics to? The car has a K&N Typhoon Intake and a BOV on it.