voodoo MBC 4 overboosting

installed, boost, voodoo, fuel, stock, raised, 15psi, owner, prev, 12psi, faulty, controller, http://boost-controller.com/images/voodoo_iv_b-b.jpg, messing, method, diode, controllers, hitting, completely, overboosting, adjust, knob, screwed, brand, happened, 10-11psi, compressor, wastegate, hose

installed a voodoo mbc 4 with the adjust knob screwed almost completely out and im hitting fuel cut at 15 psi. i have the mbc installed between the compressor and wastegate hose. wtf i