f22vx

so ive been trying to get my vx to pass emissions but im getting code 1 for O2 sensor. so i went and got a 4 wire o2 sensor from checker that you can just wire in. wired it in and now im getting code 1 and 41 (heated o2 sensor heater) im looking over the wireing diagrams and i see 2 o2 sensors but i wouldnt see where the other one plugs in. im using an integra harness cuz ive swaped the motor to a f22. so my question is what o2 sensor do i need, and do integras have a different way of wiring o2 sensors? btw im not in california

94EG8

f22vx

ive wired it all from the plug on the left. the problem i see with that pic is that on my harness there is nowhere to plug in an o2 sensor (all plugs are taken up) except for the one on the left in that pic coming from the chassis harness