I've got an obd0 JDM b16 with pr3-j00 ecu in a 89 crx hf the motor requires 2 1 wire o2's one before the cat and one after, with my current header (4-1) im only able to run 1 o2 at the back of the header the car ran like crap so I did some research and found that wiring both o2 wires to the single sensor could help my problem but to no avail, I've also found that doing a 4 wire heated sensor to a switch and relay could solve my problem. has anyone done this and have some kind of results? any advice appreciated im kind of new to these Honda motors