We are replacing the D15B7 motor with a newer D16Y7. We are taking the intake manifold and fuel injection off the Y7 and installing the parts off the stock B7. Can we now use the ECU from the '94 Civic DX (the original ECU) with the new motor? I guess the old motor was obd1 and new one is obd2, but we did not get an ECU from the junkyard with the Y7 motor? Any info is appreciated.