So I took a vtec out of a 97 Accord, and put it into my 93 Accord station wagon. Now I'm in the process of re pinning the connectors to fit the 93 wiring harness into the 97 ECU. I'm hoping the OBD2 data connector isn't necessary. I'm hoping the secondary O2 sensor isn't necessary. Or can I just wire up the primary and secondary O2 sensor pins to the one sensor?