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How to eliminate cats on OBDII cars?

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Old 04-16-2008, 12:23 PM
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How to eliminate cats on OBDII cars?

I'm wanting to put a set of pacesetter LTs on my 96 camaro but with the second O2 sensor behind the cat I know it will fowl up the pcm. I've heard of O2 simulators but wasn't sure about them or even where to get them. Any advice?
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Old 04-16-2008, 12:25 PM
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You can either get that of have them tuned out of your PCM. Or just get a hi-flo cat, weld in a bung afterwards and rig it up that way.
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Old 04-16-2008, 12:26 PM
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There are a couple of vendors selling the 02 simulators. I will PM you the links.
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Old 04-16-2008, 12:27 PM
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Which is probably the best way to do it and which is cheaper? I really don't want a cat so I'm going to stay away from that if possible.
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Old 04-16-2008, 02:14 PM
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A tune to just get rid of the rear 02 sensor codes should only run around 50 bucks, maybe a little more. A pair of 02 sims will run around a hundred.
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Old 04-16-2008, 03:25 PM
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Some have stopped selling sims, because of a crackdown by the feds (Caspers Electronics got a fine).
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Old 04-16-2008, 05:08 PM
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The only bad thing is that this is my daily driver and I can't afford alot of down time on it. Where I live there isn't alot of places near by that deal in high performance cars.....
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Old 04-16-2008, 07:18 PM
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If you're not getting it tuned out, do a "ghetto sim". Take a spark plug non-fowler, drill the end out, screw your O2 sensor in it, then screw the assembly into the bung. It gets the sensor hot enough to work, but keeps it out of the exhaust flow so it tells the computer that your exhaust is clean. I never tried it on an F-body, but it worked on my SpecV and also on my friend's GTI.
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Old 04-16-2008, 07:44 PM
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Originally Posted by shoebox
Some have stopped selling sims, because of a crackdown by the feds (Caspers Electronics got a fine).
Caspers got more than a fine. They were made an example of. There are vendors outside the United States that sell them. A company purchased the design from Caspers and is making the exact items now.
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Old 04-17-2008, 05:17 AM
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http://www.o2simulator.com/
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