SAFC Installation Issues

[clean2g]

I've been trying to install an SAFC on my 97 GSX so I can tune it, but for some reason whenever I plug in the SAFC my stock boost gauge stops working and the car sort of bogs and I have a difficult time getting over 3000 rpms. I zeroed everything, made sure it was set on karmann, and 4 cyl. Checked and rechecked my wiring connections. Not sure what's going on. And as soon as I unhook the SAFC the car drives normal and the stock boost gauge starts working again. From what I understand the car should drive normal if everything is zeroed on the SAFC when it's connected, so I'm lost. My mods are 14b, FMIC, mbc. Any suggestions?