wiring 2.4 1992

RE: 1992 Jeep Wrangler YJ 2.4L I was off roading 2 weeks ago. When I returned home I found part of the wiring harness ripped off dangling underneath the YJ. It is to the O2 sensor. The jeep was still running fine for a few days, then it started misfiring running very rough and now will not...