Mazda 6 Engine Light.
Ok. The check engine light came on, so I threw it on a obd2 scanner, and it said that the number 1 o2 sensor had an error. Are there 2 o2 sensors? 1 by the cat? and 1 closer to the headers? Which one is which if there are? Or is there only 1?
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trace66usa
Mazda Protege
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Jul 3, 2008 04:08 PM



