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Old 12-02-2012, 02:46 PM   #1
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Complete list of Oxygen Sensors for my 4.0 TJ

I've got an intermittent check engine light on my 2003 Rubicon with the 4.0L. It says a specific O2 sensor, but with 90k miles I'd like to replace them all. How many do I have? Anyone have the quantity and part numbers for each, especially Bosch?

Amy recommendations for a particular brand besides Bosch?

Thanks in advance.

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Old 12-02-2012, 02:49 PM   #2
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I reccomend NTK brand sensor
Bosch don't seem to work well with jeeps for some reason

NTK Part # 23139 NTK OE Type
Upstream Front; NTK is the OE Mfg

NTK Part # 23138 NTK OE Type
Upstream Rear; NTK is the OE Mfg

NTK Part # 23142 NTK OE Type
Downstream Front; NTK is the OE Mfg

NTK Part # 23141 NTK OE Type
Downstream Rear; NTK is the OE Mfg

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Old 12-02-2012, 06:57 PM   #3
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Advance Auto Parts us currently offering a rebate on NTK, Denso and other oxygen sensors. If you order online, you can save in the vicinity of 40% with a discount code. Save an additional 10% if you link through a Discover card.

Personally, I would not replace a downstream oxygen sensor unless there was a DTC. They don't have much affect on anything that matters.
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Old 12-03-2012, 12:18 AM   #4
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What's a DTC? I think I got bank 1 sensor 2 as the code, wouldn't that be downstream?
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Old 12-03-2012, 12:23 AM   #5
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Old 12-03-2012, 08:38 AM   #6
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Quote:
Originally Posted by Ehryk View Post
What's a DTC?
Diagnostic Trouble Code.

Quote:
Originally Posted by Ehryk View Post
I think I got bank 1 sensor 2 as the code, wouldn't that be downstream?
Why not post the actual code?
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Old 11-28-2013, 06:47 AM   #7
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Quote:
Originally Posted by wwch99tj View Post
Www.Rockauto.com I reccomend NTK brand sensor Bosch don't seem to work well with jeeps for some reason NTK Part # 23139 NTK OE Type Upstream Front; NTK is the OE Mfg NTK Part # 23138 NTK OE Type Upstream Rear; NTK is the OE Mfg NTK Part # 23142 NTK OE Type Downstream Front; NTK is the OE Mfg NTK Part # 23141 NTK OE Type Downstream Rear; NTK is the OE Mfg
Which part # coincides with error code P0135, "bank 1, sensor 1"?
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Old 11-28-2013, 08:58 AM   #8
Knows a couple things...

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Bank 1 is at the front of the engine, Bank 2 is at the rear of the engine.

Sensor 1 is above the pre-cat, Sensor 2 is below the pre-cat.

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