My 1990 civic Si now has my JDM - GSR 94-01 OBD2 motor installed and all that is left is the wireing. I'm using the p72 ECU that came with the motor and purchased a OBD0 chassis to OBD2 ECU conversion jumper. Other than the vtec wiring, what other wireing will be nessicary? Can I still use most of the stock 90 SI harness? Any advise would be much appreciated.