1 wire O2??

[Tech5]

it will run rich and like shit with no o2 and with only that 1 wire i doubt it will even read its there. I am having this issue right now with no 4 wire o2 and mine runs shitty and rich.
Just do a 4 wire o2 its the best bet

I have worked on so many swapped cars with no o2 sensor or un hooked ran like a champ no issues ... Yes runs alittle rich but doesnt make it run like crap