The harness for the o2 sensor on the cat came apart and shredded on my drive shaft.Can I spice a new one from the jy onto it? Its the plastic part that holds the wires that clips them together.Its on a 96 XJ.

Yea that's what I would do. Some of the cheaper "universal" O2 sensors actually require you cut the harness to splice them into your wiring. I almost bought one by mistake. I would say go to the JY and clip a connector, you'll probably get it for next to nothing. Just make sure you wire them up correct or who knows what'll happen when you plug it in. And this time zip tie it somewhere so when your driveshaft gets hungry it doesn't eat your wiring.

Mine did the same thing I just hard wired them together

Thanks guys, I appriciate your quick responses. Thats what Ill do then.

I have an extra plug cut from a stock o2 sensor if it is the same as a 99 Xj and I think it is.It was cut right at the sensor so the wires are full length. Let me know if you need it.

Im good, I found one at a jy. They gave me it for free so its all fixed now. Thanks.

Okay my jeep did the same thing as troy fritz' I have a after market O2 sensor the wires on the sensor dont match the wires on the jeep.

the after market sensor i have has
2 white
1 grey
1 black

the jeep has
1 green/white
1 yellow/white
1 black and
1 yellow/black

what colors do i match to make my jeep run better since the drive shaft ate my plug?

hey, i am having the same problem, and cannot find the answer anywhere.
my wire colors are also different than those that i can find anywere else.

i have a green and white wire, a brown and white, a black and yellow and all black

sorry for bumping, but this is the closest thread i found to what i needed, thanks

I'm befuddled by all the threads I read about downstream O2S harnesses being ripped out by the driveshaft. Dosen't anyone have the downstream O2S bracket installed?



Here's the '99 Downstram O2S connector (body harness) pinout and the O2S circuit diagram.





Often it's hard to disdinguish the wire colors, so look at the diagram and see if your colors actually match up. I'll bet the do.

Look at the image of the downstream connector pinout. That's looking at the body haness connector, not the O2S.

The O2S connector wires connect to the body harness connector in the following ways:

Body harness connector CAV 1 gets O2S connector Gray wire, CAV 2 gets the Black wire, CAV 3 gets the white wire, and CAV 4 gets the other White wire. Don't mix up the White wires.

CAV 2 is the ground for the the O2S heater. CAV 1 is power to the O2S heater.

mine did the same thing so i bought a bosch smart link connector and i swear ive looked at every forum and no wire colors match mine, all of mine have a stripe through them. cant pass inspection right now, here are my wire colors.
Dark green with an orange stripe
black with a blue stripe
black with a white stripe
tan with a white stripe
i bought a bosch sensor with the colors 2 white 1 grey 1 black
please reply

been to 2 junkyards and did extensive Google searches for this O2 sensor wiring harness. On my 99 Cherokee you can disconnect and remove the wiring near the distribute and replace But Jeep doesnt make the part and Google searches have been worthless.
going to try Car-Parts.com and call Junkers in person to see if I can get the unit without splicing

STANDARD MOTOR PRODUCTS S1933
Alternate/OEM Part Number(s): 5013971AA


https://www.rockauto.com/en/moreinfo...431776&jsn=411



https://www.ebay.com/itm/Standard-Mo...RYZ~cL&vxp=mtr



You are going to have to wire it yourself, or pay someone else $80.+ per hour to do it.


Pinout for downstream O2 Sensor 1999 xj


1: Dark Green / White
2: Black
3: Brown / Yellow
4: Tan / White


Splicing a wire isn't a big deal. Solder and heat shrink it, or just use heat shrink butt connectors.

And a bonus. Go to this page to download a full 1999 tech manual.
http://cruiser54.com/?page_id=365

Hope this helps because it helped me