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Old 08-01-2013, 07:14 PM   #61
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Originally Posted by 1987Wrangler YJ View Post
Took my cat off, beat the inards out, put it in. now it sounds better and idles better!
Easy boy. Keep talking like that and the Mod Squad is going to shut down this thread. Behave yourself

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Old 08-01-2013, 07:27 PM   #62
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Took my cat off, beat the inards out, put it in. now it sounds better and idles better!
I cut mine off today too. Mine was clogged bad. I didn't put it back though. I ran a straight pipe to the muffler. Got it off without taking the skid plate off. Huge pain in the ass avoided.

I'm very happy with the results.

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Old 08-01-2013, 08:31 PM   #63
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I cut mine off today too. Mine was clogged bad. I didn't put it back though. I ran a straight pipe to the muffler. Got it off without taking the skid plate off. Huge pain in the ass avoided.

I'm very happy with the results.
Yeah same, it's a lot more quite at idle. And what the heck is a "mod squad"???
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Old 08-01-2013, 09:14 PM   #64
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Ok so if I am understanding this question you want to know if removing the catalytic converter or muffler will pact the o2 sensor?

If that is the question I am fairly certain the answer is no.

The way the 02 sensor works is that it measures the amount of 02 in the exhaust pipe not enough and you are running rich to much you are running lean.

Since the sensors works off of a chemical reaction which produces an electrical signal that talks to the computer it can effect engine performance I.e. lean it wants to dump more fuel.

But remember if you have done the nutter bypass you are not using your on board computer to control fuel to air mixture any more you are using the mechanical parts of the carb.

Lastly on some jeeps namely mine with the 4.2l engine the o2 sensor is in the manifold just before the first piece of pipe that goes to the cat.

I know that is long winded and I did not cover the pollution side of the equation but hopefully that addresses your question.

If all else fails GTS or google that sh$& for more info

Chief
Thank you for the info and I love to GTS once I have a starting point from the forums. Looks like all the prius drivers will hate me even more when my exhaust is dumped just past the O2 sensor lol! (Btw I have a 95 2.5L)
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Old 08-01-2013, 09:54 PM   #65
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Yeah same, it's a lot more quite at idle. And what the heck is a "mod squad"???
Look at the last entry on the thread in todays list called CAT which was active until recently and you will see exactly who the Mod Squad is
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Old 08-01-2013, 10:36 PM   #66
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They closed it because people wanted to make there jeeps run better? LOL Did they close it because it was against the law?
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Old 08-01-2013, 11:15 PM   #67
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Actually I had a conversation with the moderator (who happens to be a decent guy it turns out) and its all about the legal issues concerning the fact that cat removal is illegal in all states. And it seems like its a hot button issue in the entire automotive world. They just cant risk the possible liabilities which could result from threads openly discussing (and kind of promoting in ways) how to break the law. It's a point well taken which I'm going to respect.
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Old 08-02-2013, 12:06 AM   #68
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I won't speak of the illegal removing of a catalytic converter any more.

I respect the forum rules about not posting about it die to the fact that it is illegal.

I would like to state that I haven't the slightest clue as to why not having one is illegal? If it doesn't work properly, it isn't doing the job it's suppose to do. Therefore, not properly "protecting" the precious environment. It may be illegal in all states to not have one, but why did some states eliminate E-Checks? We used to have them here in KY, I remember having to take my first pickup truck to get checked. That wasn't long ago, 11 years to be exact.

Anyways, I respect the forum rules. Won't post about it anymore.

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