So heres the problem I'm having....

I have a 97 civic dx coupe. It has a d15b vtec motor meaning it has one o2 sensor plug in the engine harness. I want to know how I can run a second o2 sensor since i need (2) for an obd2 ecu.

I know on most ex civics, the second o2 sensor come out through the bottom of the floor pan and screws in right after the cat.

So what do I do? How do I do it?

Im running a p28 right now with a jumper so i dont have a check engine light and it runs rich. But i wanna run my obd 2 ecu