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Before & After Cat O2 Sensors
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07-11-2005, 02:21 PM
96C280
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Join Date: Oct 2001
Posts: 226
Before & After Cat O2 Sensors
What are the symptoms of having a bad/poorly operating before cat O2 sensor VERSUS an after cat O2 sensor? The after cat sensor just tells you if the Cat Convertor is working or not?
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