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pass maryland emissions without a cat?

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Old Feb 7, 2012 | 05:25 PM
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jjplaya209
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pass maryland emissions without a cat?
anyone have any experience with passing md emissions and inspection with a test pipe, and without putting on the stock cat? i've heard tricks of fooling the ECU but nothing solid

thanks!
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Old Feb 7, 2012 | 05:31 PM
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as long as u do not have a CEL on u will pass emision with flying colors.
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Old Feb 7, 2012 | 06:04 PM
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it will pass emissions without a catalytic converter and no tricks to the ECU? how is that possible
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Old Feb 7, 2012 | 06:05 PM
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I just passed last August running a test pipe. If you use the spark plug foulers to pull the O2 sensor out of the exhaust a bit you shouldn't throw a CEL.
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Old Feb 7, 2012 | 06:22 PM
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what size non-foulers did you use, and did you have to make any other changes?
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Old Feb 7, 2012 | 06:39 PM
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Same here, passed mine the past three years with a test pipe. Forget where I got my CEL eliminator, but it spaces it out about a half inch.
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Old Feb 7, 2012 | 11:00 PM
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Originally Posted by jjplaya209
what size non-foulers did you use, and did you have to make any other changes?
I don't remember off the top of my head. Its been 5 years since I installed the exhaust, but that is the only thing that I had to change.
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Old Feb 8, 2012 | 08:19 AM
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https://www.evolutionm.net/forums/ev...ouler-how.html
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Old Feb 8, 2012 | 08:31 PM
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Originally Posted by Ryuartz
thanks! this will solve emissions, but how did you pass inspection w/o a cat?
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