I bought a 04 with a Coyote swap and the previous owner had a rear proportional valve and the OEM valve still installed, no abs aftermarket MC. I removed the guts in the OEM valve and used the MMS replacement plug. I bled the MC directly at the bleeder plugs and at the calipers. Now I have no pedal it goes straight to the floor, what did I do wrong? It has the hydraboost still installed, any help would be greatly appreciated, Thanks Randy Hayes