I have a 1989 Civic hatch with DPFI. I aquired a PS9 ecu from a 1990 civic 4 door automatic with MPFI. I have compaired the pin outs on the 2 ecu's and if I can take care of the automatic part of the ecu can I just plug this in and add the wires to do my DPFI to MPFI conversion? Both of these ecu's are OBD 0 aren't they? I am hoping to use the PS9 with the better fuel maps for some improved performance. Am I being stupid or is this possible?