4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Emissions check

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Old 03-18-2011, 07:17 AM
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2003gtowner
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Location: georgia
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Default Emissions check

My son just bought a 2003gt with a 4.6L eng. It has new cats and 02 sensors. It did not pass the readyness test when we tried to get the emission test done. The check engine light is not on and it shows no codes when connected to a scanner. The only thing is the car will not pass the cat test when connected to the scanner.
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Old 03-18-2011, 02:08 PM
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rumtillidie
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Originally Posted by 2003gtowner
My son just bought a 2003gt with a 4.6L eng. It has new cats and 02 sensors. It did not pass the readyness test when we tried to get the emission test done. The check engine light is not on and it shows no codes when connected to a scanner. The only thing is the car will not pass the cat test when connected to the scanner.
I think you should take it to one of those Drive Clean places. They will diagnose it and give you a quote on how much it will be to fix it. Sorry I'm in Ontario I don't know if its different where you are.
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