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would a failing cat AFTER the 02 sensor cause a affect gas mileage?

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Old 09-15-2005, 06:37 PM
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would a failing cat AFTER the 02 sensor cause a affect gas mileage?
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Old 09-15-2005, 07:05 PM
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you dont have a O2 sensor after cat?
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Old 09-15-2005, 07:07 PM
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well lets just say you dont for now,...if its plugged enough, yes it will affect gas milage.
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