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Old 12-26-2012, 12:25 PM   #1
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O2 sensor location

Maybe I'm an idiot but for the life of me I can't find my bank 1 sensor 2 O2 sensor. Looked behind the cat and can't find anything. What am I missing? I'm in a 2012 JK. My gas mileage appreciates any help you could give! :-)

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Old 12-26-2012, 01:01 PM   #2
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Some vehicle actually have them further down the pipe after the cat. Just check all around the exhaust.

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Old 12-26-2012, 01:15 PM   #3
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Originally Posted by Raziel
Some vehicle actually have them further down the pipe after the cat. Just check all around the exhaust.
Yup. I did. Didn't see anything. Wish the service manuals were available for the 12s!
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Old 12-26-2012, 01:38 PM   #4
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Old 12-26-2012, 03:08 PM   #5
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Ok found it. You have to pop the hood to release the wire harness. I'll post picks later. Freaking thing is seized on there. Never easy. FYI not far behind front tires right behind/below engine
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Old 12-27-2012, 12:00 PM   #6
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If you can get it to turn some. Apply some brake fluids to the t threads. Turn the sensor back on & wait 5 minutes. Then try to take out off.
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Old 12-27-2012, 02:53 PM   #7
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Quote:
Originally Posted by Raziel
If you can get it to turn some. Apply some brake fluids to the t threads. Turn the sensor back on & wait 5 minutes. Then try to take out off.
Thanks! Just got done with the job today. Sprayed it down with PB Blaster last night and again this morning then let the engine run a bit and she finally gave way. New sensor is in now with some anti-seize around the threads! Deleted the codes with my hand held and knock on wood all seems to be fine. Jeep appears to be happy. She's showing the "Eco" status agin when I drive. Personally I always thought the eco was worthless but at least it's suggesting the computer is happy again.

Ended up using a box wrench to take the sensor off. The slotted socket was just a PITA to work with in that confined space.
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Old 12-28-2012, 12:14 AM   #8
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Question - If yours is a 2012 why didn't you have the dealer swap it out? As much as I like to do my own work I wouldn't want to spend the money on it if it's under warranty.
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Old 12-28-2012, 11:32 PM   #9
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Question - If yours is a 2012 why didn't you have the dealer swap it out? As much as I like to do my own work I wouldn't want to spend the money on it if it's under warranty.
I took it for a head replacement to the dealer. Quite frankly after that I don't trust them. They do shoddy work and give no attention to detail. (long story) I'd rather pay the $50 and do it myself and know it's done right.

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