02 sensor 87 dl carb

[85 gl duck]

So I recently came to find that I had a wire dangling from underneath my subie. Upon further investigation it runs into the O2 sensor. Question is where the hell does it go from the O2 sensor? I've looked everywhere. The wire was ripped in half and I can not find where it attaches to anywhere. Put it on a lift, nothing anywhere at all someone please help, the car is getting shitty fuel economy and stalls almost every Time I stop. It is quite annoying.

-Duck