2004 Chevy Impala C02 SENSOR

2004 CHEVROLET IMPALA
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KJOHNSON92599
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Engine Performance problem
2004 Chevy Impala 6 cyl Two Wheel Drive 100363 miles

Where can I locate the C02 sensor on my car so I can replace it? Is there two of them that need to be changed at the same time or just one?
Sep 28, 2008 at 5:51 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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