Car Tech

General discussion

Wiring for 97' Jeep Cherokee O2 sensor

by 4709martin / March 12, 2008 1:47 AM PDT

Recently bought 97' Jeep Cherokee Sport. The catalytic converter was removed and replaced with a straight pipe. Drilled hole and mounted flanged nut for O2 sensor and found that the down stream wiring harness was cut off. Looked in my 99' Jeep Cherokee factory shop manual and found that the color of the wires are different then the 97' Jeep, can anyone tell me what the proper connections would be from the O2 sensor (one black, one gray, two whites) to the existing four wires.

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02 sensor
by Cat5 Cane / March 13, 2008 3:18 AM PDT

To be honest... suggest to replace 02sensor and add back catilitic Converter to exhaust. Jeeps are "very" dependent on all sensors working. Splicing wires together may give false reading and will tell PCM to correct false info.

I renewed old responses of past failures for jeeps for your enjoyable reading. Be aware to read all posts, as corrections first jotted down may later show to not be the answer and further parts had to be replaced.
Suggest to Keep a log of possible corrections or copy and paste (save) each blogg remembering the name of blogger.
Sometimes it is easier to see blogs from the "tree view"... look for viewing style on top right of each forum topic.
Good luck

Be sure to hit/check Track this view for emails before sending messages... see bottom left!

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O2 Sensor
by Bigzyw / April 23, 2008 10:46 AM PDT

Similar problem here. 1996 Grand Cherokee. Catalytic converter was stolen...now replaced, however the male plug was stripped off the wires..now I have 4 wires hanging out and no male plug. Was contemplating cutting the female and splicing. However, I have no idea which connect to the white, white, black and grey. On the male side the colors are: Green/Orange, Black/Brown, Black/lt. blue, black/red.

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1996 Jeep Grand Cherokee O-2 Sensor
by longshore1 / January 6, 2010 10:37 AM PST
In reply to: O2 Sensor

I have the same issue with a missing plug for my O-2 sensor, did you get an answer of how to match up the wires? I need the answer myself so I can fix my Jeep. I have 4 wires and need to know how to match to O-2 sensor plug. Please HELP. Thanks Terry

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