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Old November 12th, 2008, 09:08 PM   #1
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Default O2 Sensor Simulators

Anybody use these before? Good, bad or otherwise? It's for the downstream O2. My cat is rattling like nuts in a coffee can and can't afford the coin for a replacement, over $200 for a direct fit. I can get a universal for around $90 but am looking for a cheap alternative. Put a sim in and lose the cat.

Or should I just cough up the coin and get a new cat?
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Old November 12th, 2008, 09:29 PM   #2
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or try taking out the cat and running it. I needed no simulators on my Chevy. Not sure what your working with.
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Old November 12th, 2008, 09:32 PM   #3
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just bust up the material in the cat then start it and blow it out. did that on my old xj and it was fine
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Old November 12th, 2008, 09:39 PM   #4
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Oops. 97 S-10, 2wd 2.2L. OBD2. Thought about gutting the cat, we'll see what happens. Just don't wanna stare at the check engine light.
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Old November 12th, 2008, 09:44 PM   #5
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i never had a check engine light come on. i guess if it does just go to a junk yard and pull on
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Old November 12th, 2008, 10:24 PM   #6
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Use 2 spark plug defoulers to pull the sensor out of the stream, you'll have to drill out one of the defoulers to fit the sensor, reset your computer and it should turn your CEL off. It worked on my 98 XJ with no cat...
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Old November 13th, 2008, 07:16 AM   #7
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Quote:
Originally Posted by jbsjunk View Post
Anybody use these before? Good, bad or otherwise? It's for the downstream O2. My cat is rattling like nuts in a coffee can and can't afford the coin for a replacement, over $200 for a direct fit. I can get a universal for around $90 but am looking for a cheap alternative. Put a sim in and lose the cat.

Or should I just cough up the coin and get a new cat?
What year vehicle and how many miles? Also, are you sure it just isn't the heat shield rattling?
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Old November 13th, 2008, 07:30 AM   #8
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I've them for 3 years in my 96 tahoe with headers no cats dual 40's with no problems.

When I tried gutting out the cat it still threw a ses light.
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Old November 13th, 2008, 07:34 AM   #9
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Also universal cats don't always work.I work a chevy dealer people come in with there ses light on we quote out a new cat and they say I just replaced it with a universal.Just a heads up.
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Old November 13th, 2008, 04:22 PM   #10
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i have a 2000 s-10 2.2 2wd get the cheap sim its what i did works great convertor blew apart about 130,000
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Old November 13th, 2008, 04:55 PM   #11
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Quote:
Originally Posted by jbsjunk View Post
Anybody use these before? Good, bad or otherwise? It's for the downstream O2. My cat is rattling like nuts in a coffee can and can't afford the coin for a replacement, over $200 for a direct fit. I can get a universal for around $90 but am looking for a cheap alternative. Put a sim in and lose the cat.

Or should I just cough up the coin and get a new cat?
http://www.thefastman.com/02Simms.asp

I used one of these on a TJ and it did the trick, no more light.
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Old November 13th, 2008, 10:37 PM   #12
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Quote:
Originally Posted by JeepRat View Post
http://www.thefastman.com/02Simms.asp

I used one of these on a TJ and it did the trick, no more light.
anyone know if they make these for GM trucks? i gutted my cat and my SES light is annoying the hell out of me
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Old November 14th, 2008, 06:32 PM   #13
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Here's a place with the GM sims.
http://www.afterthoughtsauto.com/o2sim.html
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Old November 15th, 2008, 10:03 PM   #14
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Quote:
Originally Posted by JeepRat View Post
http://www.thefastman.com/02Simms.asp

I used one of these on a TJ and it did the trick, no more light.
Also kept the computer out of 'run like ass' mode?
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