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Unread 01-03-2013, 08:19 AM   #1
jeeptjrn
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Quadratec parts fitment accuracy?

I have a 2005 TJ. I am looking online for a catalytic converter on quadratec. they have a few but do not list one for a 2005 TJ w/ I6. Does anyone know how accurate their fitment recommendations are? Arent all TJ I6 essentially interchangeable.

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Unread 01-03-2013, 08:37 AM   #2
johnjr602
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my rear cat on the down pipe burnt out and clogged the rear one on the mid pipe. When I was looking I realized Quadratec doesn't even sell the ones on the down pipe. They only sell the cat on the mid pipe. The rear most cat isn't even necessary. The o2 sensors don't monitor it. The o2 sensors are above and below the cats on the down pipes. Mine is an 04 so I'm pretty sure it's the same. But if it isn't I'm sorry for wasting your time
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Unread 01-03-2013, 09:59 AM   #3
jeeptjrn
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I am getting O2 sensor error codes on the front bank 1. I wasn't sure what replacement cat to get. I know what it looks like but don't see it on quadratec.
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Unread 01-03-2013, 10:03 AM   #4
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Quote:
Originally Posted by jeeptjrn View Post
I am getting O2 sensor error codes on the front bank 1. I wasn't sure what replacement cat to get. I know what it looks like but don't see it on quadratec.
what does the code say?

chances are you need a new O2 sensors and not a new CAT.
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Unread 01-03-2013, 10:04 AM   #5
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Quote:
Originally Posted by jeeptjrn
I am getting O2 sensor error codes on the front bank 1. I wasn't sure what replacement cat to get. I know what it looks like but don't see it on quadratec.
If the cat is in fact bad and you don't have the ability to do some fab work and weld a new one in, you have to replace the entire y-pipe with both cats. I believe there is a write up in this section detailing the individual replacement of them.

I would ensure that the O2 sensors are functioning properly before throwing money at a cat.
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Unread 01-03-2013, 10:18 AM   #6
jeeptjrn
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I will try O2 sensors
Thanks for feedback

I believe it was 2098 error code
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Unread 01-03-2013, 11:33 AM   #7
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It depends which cat is bad.The rear cat can be cut off and a universal cat clamped on.I did that and it worked great for $130.
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Unread 01-03-2013, 11:59 AM   #8
hustler905
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TJ cats are not all interchangeable.

Try Rock Auto.
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Unread 01-03-2013, 01:21 PM   #9
johnjr602
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Yeah I bought my y pipe with the cats on it at rock auto. Not cheap. Like 600. And that will come with the rear cat too. If you have a state that doesn't actually test the emissions (just checks the codes) I wouldn't even put in the rear cat
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Unread 01-03-2013, 04:58 PM   #10
jeeptjrn
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thanks for replies. Hope I wont need the cat system. I am poor white trash. I will start with the downstream O2 sensors.
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Unread 01-03-2013, 06:59 PM   #11
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Does any aftermarket catalytic converter solve the problem of the check engine light on with a code stating the catalytic converter emission is below standard?
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Unread 01-03-2013, 07:31 PM   #12
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Quote:
Originally Posted by thomasd8 View Post
Does any aftermarket catalytic converter solve the problem of the check engine light on with a code stating the catalytic converter emission is below standard?
And you're driving a what model of TJ?...
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Unread 01-04-2013, 04:59 PM   #13
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Jeeps have been known to be picky about the replacement parts that they like or don't like. Lot's of TJ owners have replaced o2 sensors with aftermarket sensors and still had problems, then replaced the aftermarket parts with sensors from the Jeep dealership and had their problems go away.
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Unread 01-15-2013, 01:16 PM   #14
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Hello everyone,

Here are the parts needed for 2004 and newer TJ.

Oxygen Sensor
Catalytic Converters



- Kahdir
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Unread 03-16-2013, 06:59 PM   #15
jeeptjrn
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Or this part depending on how much money you want to throw away.

http://www.rockauto.com/catalog/x,ca...,parttype,5808
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