I replaced my trans, and when I was doin so I disconected the o2 sensor at the exhaust and threw the wire up till it hooked on something. Now I cant find the wire and the check engine lite comes on. Can somone tell me where the wire comes from so I can find it and hook it back up?

 

Its a 1989 2.8.

 

You're looking for a purple wire that's not connected to anything. I wouldn't think it would be that hard to spot? It goes into the harness and leads to the PCM. Trace the harness back from the PCM if you need to.