civicwagonman

I was wondering how everyone wires up the o2 sensors, since the p28 runs a 4wire adn my 90 runs a single wire. will it not throw a code if you don't have the o2 heater wired up or do you run the wires? I have all the connectors to make my own adapter, just curios about that.

RMS

You have to wire in the heater power (use Bat+ at ecu) and of course the heater control and sensor ground. We build them all the time for Cali smog ref legal swaps. There are a couple other issues, too. If you're not confident and don't want to put your ecu in peril of being smoked we can use you parts and put it together for you at a discount. We test every harness we build in a running vehicle. This particular harness OBDI to pre OBD is the only one we build...Kenji does such a good job on the others we get those from him