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Old 08-26-2011, 06:03 AM   #4
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,276
The biggest potential downside to running with a possible bad O2 senor is that the air fuel ratio may be off as the result and damage the cats on that side over time. As cats cost one Hell of lot more than O2 sensors, the trade off is obvious…..
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