PM this guy, i know he was selling OBD2A to 0BD1 conversion harness which will make the job easier for you. I pmd him though for a mate and he hasnt replied. Worth a try. Although there are writeups around to DIY the wiring harness just depends how good you are etc.
TradeMe.co.nz - Honda Integra TypeRturbo 1996 - New Zealand
OBD2 is 96 - 2000 i think so that 93 si ecu will be Obd1.
Edit: if you have an SIR-G im sure it would already be OBD2?
Differences between the OBD series (Taken from
Hondata Website)
Top - OBD2B(left 3 plugs used)
- OBD2A
- OBD1
- OBD0
