Alright I bought an hks pfc f-con with an GCC (Graphic Control Computer) from a friend I did a my research and found I'm missing the pressure sensor for it and the FCD unit. I wounder if the GCC replaces the FCD unit or you have to put of both them on to make it work. I can get the pressure sensor online but I need the manual for the GCC if anyone know were I can find it online really need it thanks.