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Old 03-07-2008, 06:42 PM   #1
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Default Bad O2 symptoms?

How can I tell my O2 sensor is bad?
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Old 03-07-2008, 08:11 PM   #2
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You can usually test the hot wire with a volt meter while the car is idling and warm (sensor needs a couple minutes to properly warm up). The voltage should cycle up and down quickly.
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