harness is pretty f'ed up. i need to re-wire the o2 wire, it's seems like the wires comes out towards the tranny then get routed all the way back to the cat but i dont know. what color is the wire and where does it spits from the harness? pics would help.

 

What year is your car?
90-91 only have 1wire o2s, 92-93 have 4wires o2s.

tsispaubpabkoj

 

agreed. 90-91 will have a 1 wire oxygen sensor w/ a white connector located at the manifold and 92-93 has 4 wires, grey connector (2 black wires, 1 green, and 1 white) located at the header collector.

 

obd0, so the wire im looking for will be sitting more towards the primaries of the ex manifold?

 

EX Manifold what?

You're only hunting for 1 white wire.

If you can't find it, run a new wire from the ECU. LoL. (white wire)