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O2 sensors are missing wires

Jeff_ray1040

New Member
Joined
Jul 18, 2022
Messages
1
Location
Tiskilwa, IL.
Hey I got both up and down steam o2 sensors to replace and we could not locate where they plug into. Apparently they have been cut off. Our Jeep dealership says the harness is discontinued and basically doesn't want to deal with it. I have been looking online for the parts but still cannot see where the sensors connect to the engine/manifold/electrical system? Any advice. It is a 2000 4.0 sport
 

CharlesHS

TJ Expert
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Lifetime Supporting Member
Joined
Mar 10, 2020
Messages
4,970
Location
Jacksonville FL, Quezon Philippines
There is a PDF of the Factory Service Manual for your year TJ; in Section 8W there are wiring colors, connectors and pin outs to assist you.

https://wranglertjforum.com/threads...ice-manuals-fsm-technical-documentation.4618/

There is a PDF of the Parts Catalog for your year TJ.

https://wranglertjforum.com/attachments/2000-tj-parts-list-pdf.14035/

There are members that are parting out TJs in the Parts For Sale section that may have what you need.

https://wranglertjforum.com/forums/parts-for-sale.128/
 
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Macrosill

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Supporting Member
Joined
Nov 19, 2021
Messages
43
Location
Long Island, NY
If I remember correctly, on my 97, the first O2 sensor connector is at the rear of the engine on the drivers side near the fuel rail. The second was in the area up above the transmission.
 

CharlesHS

TJ Expert
Supporting Member
Lifetime Supporting Member
Joined
Mar 10, 2020
Messages
4,970
Location
Jacksonville FL, Quezon Philippines
There is a factory harness connector for the O2 sensors at the front of the fuel rail, at the rear of the fuel rail, and 2 that are beneath the intake manifold.

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