ArmyLukehart

Grand Cherokee with the 4 ltr to my 98 cherokee with the 4 ltr. Cant figure out what wires go where.

Jeep has the following combo colored wires
green/white
black/green
black yellow
black

Wiring harness has this combo

Green/red
black/blue
black/orange
black/red

any help on how to wire these up so I dont screw somthing up is greatly appreciated. Thanks

xjbones

why not just get the right one? tolerances might not even be the same...one is obd I and one is obd II.

ArmyLukehart

If I could find a 98 Jeep in the yunk yard ( thats mexican for junk... Im learning El Pasoan) then I would have one, I cant afford the 63 bucks for a new one right now.

xjbones

might not even be the right one........

ArmyLukehart

I dont think the wireing harness part matters, that was my main concern, just as long as I have the right wires connected up. Your thinking about the o2 sensor its self me thinks, which I dont think would make a difference either, because all it does is senses some **** in the exhaust which sends a signal to the ECU. Any idea why I would be getting an o2 sensor high voltage code for both o2 sensors, even before I swapped in the new harness?

sv41878

It's all done off resistances and the chances that it are the same are slim because it's for different computer set ups (OBD I and OBD II). Thus the signal it sends would not be correct and would cause the motor to incorrectly mix fuel and air. But if the plugs are the same, try it. I used one off a 97 Plymouth Breeze on mine, same wires, different plug. Or pull the plug and match wire positions. Still don't think it's gonna work right, but can't hurt to try. You won't kill the motor or computer, just send it bad signals.

xjbones

^^^^like i said before........

like someone on here's sig. says.........if you cant afford to do it right the first time, how are you gonna afford to fix it right the second time?

ArmyLukehart

By going to all the junk yards in El Paso... ha ha!.... when I get paid... damn.

And if I just use the Harness that runs down to the O2 sensor and not the O2 sensor off the 94 but one that is made for my Jeep would that work? My whole question was if anyone had a good guess as to what wires I should put together anyways.... how'd we get off that subject? And anyone know why befor I had these problems I was getting a high voltage code for bank 1 and 2 02 sensors? Thanks for your help guys!