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NG900 & OG9-3 Performance, Mods & Tuning Covers Tuning & Performance modifications for the NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible

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  #1  
Old 12th May 2012
taz38501 taz38501 is offline
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I am thinking about cutting off both of my convertors on my 1996 900se 2.5 v6 but I was wondering if the check engine light would come on or not.Any help here
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Old 12th May 2012
Paul8ex Paul8ex is offline
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if you have a o2 sesor after the cat then yes it will. theres a few ways to try and trick it but why would u wanna take your cats out ??
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Old 12th May 2012
taz38501 taz38501 is offline
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A friend of mine told me that my car smelt like nasty eggs which makes him believe to be a clogged cat or both that is why
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Old 12th May 2012
Paul8ex Paul8ex is offline
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why not replace them. first its not legal and you will fail emissions. second the cars gunna be super loud.
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Old 12th May 2012
taz38501 taz38501 is offline
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And does my 1996 have an o2 sensor after the cat
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Old 12th May 2012
Paul8ex Paul8ex is offline
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lol its your car u tell me lol. yes there should be one after the cat
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  #7  
Old 12th May 2012
Pontius DIO Pontius DIO is offline
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Under hard acceleration some cats have a funky smell. I'm assuming your friend was behind you while you were flogging the car and what he's reporting is probably normal. My Lincoln Mark VIII would stink under hard acceleration but the cats were fine. If it doesn't stink under normal driving or idling, and the car runs good with no noticeable power loss, I'd just leave them alone. Removing them won't really make the car any louder. My 99' 2.0l sounds almost identical without the cat. I even have the mid pipe resonator deleted and a Summit Racing Muffler. If you have a glass pack or straight thru muffler, then it'll be louder. You also won't really gain any HP by removing them either. I've tried on a couple of NA V6 cars in the past like a 92 SHO and an 86' Cougar and nothing. If it had a turbo, then it'd spool quicker giving extra HP earlier in the rev range. You might notice a slight bump in power on V8 cars. I know my 79' and 81' Mustangs did. One had a 306 and the other had a 351W but they had street cams, etc.
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Old 12th May 2012
taz38501 taz38501 is offline
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no i friend noticed it after following him and we do not have emissions up here. And when i pulled up at there house and it was looking for a location of a part he told me he though my cats we clogged.and second dont have a ton of cash ton of cash. But I am noticing that I am getting 24 mpg so I am thinking that the cats are not clogged.And if I had a bad o2 sensor it would red flag me a check engine light code.

Last edited by taz38501; 12th May 2012 at 03:57 AM.
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  #9  
Old 13th May 2012
taz38501 taz38501 is offline
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Also wondering could i put my car on ramps and beat the crap out of the convertors due to my car idling being really rough?
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  #10  
Old 17th May 2012
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DurocShark DurocShark is offline
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Back in the 80's when I sold Jeeps, they ALL smelled like rotten eggs. Brand new cars. So I wouldn't worry about it too much.

If you hate the earth (j/k) you can pull the cats and punch out the guts with a stick and a mallet. Don't know that you'll gain anything performance-wise, but it'll be louder.
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