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Old 05-27-2008, 04:34 PM   #1 (permalink)
SirKeats's Avatar
Join Date: May 2008
Location: Southern Oregon
Posts: 111

GeRide - '89 Geo Metro *XFi
90 day: 54.26 mpg (US)
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How to test O2 Sensor?

Is there a way to test to make sure my O2 sensor is working properly... or given that I have no history on my recently purchased 89 metro, should I just assume it needs to be replaced?

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