Problem Code 2096

[DC0046]

Thanks, I could pretty much say the same thing as you did there. Only replacing the cats proved to be the cure for the repeated errant bad O2 sensor codes. I haven't had an O2 sensor code in the several years since both precats were replaced.

Thanks again. I will look into doing that or getting it done.

 

[DC0046]

Thanks, I could pretty much say the same thing as you did there. Only replacing the cats proved to be the cure for the repeated errant bad O2 sensor codes. I haven't had an O2 sensor code in the several years since both precats were replaced.

Well, I am grasping at straws here since I don't want to drop $1,000 to replace the exhaust system so don't get mad if this seems dumb. I have had one mechanic and a muffler shop say that they believe the issue is using ethanol rather than real gas. Doesn't really make sense to me, but thought I would ask an expert. Thanks again for all the help.

 

[Jerry Bransford]

Well, I am grasping at straws here since I don't want to drop $1,000 to replace the exhaust system so don't get mad if this seems dumb. I have had one mechanic and a muffler shop say that they believe the issue is using ethanol rather than real gas. Doesn't really make sense to me, but thought I would ask an expert. Thanks again for all the help.

It's not the entire exhaust system, it's just the pre-cats attached to the headers. I've never seen or heard of ethanol causing that problem so it could be true or it could be BS.

 

[Terry Farrell]

I've had this issue pop up from time to time and finally decided to fix it. Starting with replacing the sensor and will progress to the Pre-Cats as necessary. Thanks for all the great information and the links to the part. I appreciate it.

 

[bighedder]

Here's the correct O2 sensor, and the correct brand:
https://www.amazon.com/dp/B001NY0QQK/?tag=wranglerorg-20

Chris, Amazon is saying it will not fit my 2006 TJ sport, bank 1 sensor 2

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[Chris]

Chris, Amazon is saying it will not fit my 2006 TJ sport, bank 1 sensor 2 View attachment 64123


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Yeah, it says that but Amazon is wrong on this one (sometimes it happens). According to the NGK catalog that is indeed the right part number.

 

[bighedder]

Yeah, it says that but Amazon is wrong on this one (sometimes it happens). According to the NGK catalog that is indeed the right part number.

Thank you Chris


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[Chris]

Thank you Chris


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No problem! Amazon said one of mine wouldn't fit either, but it fit fine. Most of the time they're right, but sometimes they aren't!

 

[Stockli]

They require a 7/8" wrench. Cut the wire off the old sensor and use a BIG wrench with a long handle to break it free. It's pretty guaranteed it'll be in there tight! Then you can use a slotted O2 socket available at your auto parts store to install the replacement. Those slotted sockets aren't strong enough to remove a seized O2 sensor, they can flex and bend open. The slot is for the wiring of the new O2 sensor to pass through.

P.S. I had one O2 sensor that had seized in the header so badly that my biggest 7/8" wrench couldn't break it free. I had to weld a long piece of scrap steel to the wrench to have enough leverage to break it free.

I had one galled in so bad on an XJ I used a big old wrench and ripped the bung out.

I have had good luck using a big old plumbers wrench and liquid wrench