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Old 03-17-2013, 08:39 PM   #1
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Oxygen Sensor Brand

If you have actually put them in your Jeep and if you prefer them etc:

NGK/NTK

Bosch

Denso

Delphi


Thanks!

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Old 03-17-2013, 08:50 PM   #2
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I put Standard (as in Standard Motor Products) o2's in mine. No problems so far, only been a thousand miles or so.

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Old 03-18-2013, 06:19 AM   #3
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Go with NGK/NTK. Many of us have found that the Jeep PCM does not like Bosch O2s
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Old 03-18-2013, 06:22 AM   #4
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Denso.
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Old 03-18-2013, 08:15 AM   #5
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Go with NGK/NTK. Many of us have found that the Jeep PCM does not like Bosch O2s
This↑
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Old 03-18-2013, 09:57 AM   #6
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X2 Denso

BTW, Love the white on white dual top! Rarely see those around anymore. Beautiful
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Old 03-18-2013, 10:19 AM   #7
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I am going to replace my upstream o2 sensor on my next round of maintenance work. I've not had the jeep long enough to know about parts it likes or dislikes and I hope to avoid the latter by learning from forum jeep owners' experiences.

Related question (not intended to sidetrack or derail the thread): Which company makes the OEM closed-loop injection system for the '99 wrangler? I ask because it would stand to reason that the FI manufacturer's o2 sensor would pair perfectly with their system.
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Old 03-18-2013, 10:48 AM   #8
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x3 Denso
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Old 03-18-2013, 12:28 PM   #9
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Go with NGK/NTK. Many of us have found that the Jeep PCM does not like Bosch O2s
x2...thats what comes stock.
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Old 03-18-2013, 12:57 PM   #10
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Stick with NTK.
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Old 03-18-2013, 01:49 PM   #11
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Quote:
Originally Posted by Neil F. View Post
Go with NGK/NTK. Many of us have found that the Jeep PCM does not like Bosch O2s
Quote:
Originally Posted by UnlimitedLJ04 View Post
x2...thats what comes stock.
X3.......they can be found at places like Advance for a fraction of what the dealer asks for them.
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Old 03-18-2013, 04:46 PM   #12
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X3.......they can be found at places like Advance for a fraction of what the dealer asks for them.
WWW.Rockauto.com has them cheaper than places like advance...
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Old 03-19-2013, 01:24 AM   #13
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Quick question about the o2 sensor,is this something to change as a maintenance procedure or wait for a check engine light or some other issue to happen.

Mine's an 02 4.0 with 93k

Thanks
Ken
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Old 03-19-2013, 03:23 AM   #14
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I just ordered the NTK brand through rockauto.com.

I did not have a check engine light, but figured that after 125,000 miles it was time to change the sensors out. Most people wait for a check engine light, but I have heard that some people get better mileage after changing them out. I do not think it is a maintenance thing, but I may be wrong about that.
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Old 03-20-2013, 01:23 AM   #15
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I just ordered the NTK brand through rockauto.com.

I did not have a check engine light, but figured that after 125,000 miles it was time to change the sensors out. Most people wait for a check engine light, but I have heard that some people get better mileage after changing them out. I do not think it is a maintenance thing, but I may be wrong about that.
So for the better mileage factor that would be the two upstream ones?

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Old 03-20-2013, 07:13 AM   #16
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Yes the upstream tell the computer to lean or fatten the fuel trim. If the o2 sensors or responding slowly or not at all you will get worse mileage
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Old 03-21-2013, 02:50 AM   #17
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Thanks
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Old 03-21-2013, 11:39 AM   #18
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Quote:
Originally Posted by wwch99tj View Post
WWW.Rockauto.com has them cheaper than places like advance...
+1 on this, I get stuff for all my cars there, and friends cars too for that matter. GREAT website, they have pretty much every part for every car. And you get a cool magnet. :-D

PS. No, I don't work there, just a BIG fan! LOL
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Old 03-21-2013, 03:15 PM   #19
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I ordered the Bosch from rockauto after the check engin light came on. Code said front sensor. A month or so after I installed it check engin light came on again. It was then I found out about the Jeeps not being happy with the Bosch sensor. I will get NTK next time.
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Old 03-21-2013, 03:28 PM   #20
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Ordered the two NTK sensors I needed from Rockauto.com 2 days ago and both sensors came in the mail today. That is way fast. now lets see if I can get them off the Jeep. I had hernia surgery 2 days ago so I am a bit nervous.

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