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Old 09-29-2013, 06:11 PM   #1
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Oxygen Sensor

Found this wire pulled out of the plug on the oxygen sensor on my 93 YJ 2.5L today. Could I try to fix it, or should I just order a new sensor?
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Old 09-29-2013, 06:29 PM   #2
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He'll yeah try and fix and save the money for beer or YJ parts. If it fails then replace it.

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Old 09-29-2013, 07:53 PM   #3
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I can't get my o2 sensor off the manifold
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Old 09-30-2013, 12:03 AM   #4
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I can't get my o2 sensor off the manifold
PB blaster and heat work for me. Spray it down for a couple hours then run the Jeep if the PB blaster won't work. Could also try to tighten it slightly then try to loosen. Sometimes this helps but just a suggestion.
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Old 09-30-2013, 12:57 AM   #5
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I can't get my o2 sensor off the manifold
Autozone has a special slotted socket they will let you use. I was able to get mine out with some PB Blaster. I think the sensor was about $20.
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Old 09-30-2013, 01:18 AM   #6
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Autozone has a special slotted socket they will let you use. I was able to get mine out with some PB Blaster. I think the sensor was about $20.
Well i have a socket in my toolbox that fits bit iv put alot of elbow grease in it!! any issue with not running one?
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Old 09-30-2013, 02:22 AM   #7
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Well i have a socket in my toolbox that fits bit iv put alot of elbow grease in it!! any issue with not running one?
Yeah you need that O2 sensor in there and hooked up. The engine will run really rich and your mpg's will go down, exhaust gasses will be hotter and you'll burn out the CAT faster. Also, it's not good for the environment lol.

I say don't try to fix it unless you're an electrician/wiring expert and have access to pin-pullers and extractors and also a new cannon-plug pin. It's not that expensive to replace, and you'll have piece of mind knowing you'll probably never have to pull it out again. Do it once, do it right, there'll always be $ for beer for something else you can cheap-out on.

If you -really- can't get it out... replace the downpipe lol. Two bolts up at the manifold and a 4-bolt flange at the CAT and it falls down. But keep spraying and soaking the sensor, it will eventually get loose. I use this penetrant called Aero-Kroil, it will get down into a hole 1-Millionth of an inch, plus it blows away rust. It's expensive but so much more better than PB-Blast IMO, (and it smells better )
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Old 09-30-2013, 10:01 AM   #8
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Well i have a socket in my toolbox that fits bit iv put alot of elbow grease in it!! any issue with not running one?
Try slipping a piece of galvanized pipe over your wrench handle to give you more leverage
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Old 09-30-2013, 03:26 PM   #9
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My o2 sensor wires were ripped out by the driveshaft in 4wd.
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Old 09-30-2013, 06:43 PM   #10
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Autozone wanted $80 for a sensor so I took the connector apart and fixed it today. I was able to pull the pin just using a pair of needle nose to remove a little retaining clip and then press the release with a small flathead screwdriver. Soldered the wire back to the pin and it snapped back together. Pretty easy fix actually. Thanks for the responses.

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