2004 Chevy Impala C02 SENSOR

2004 CHEVROLET IMPALA
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KJOHNSON92599
  • MEMBER
  • 1 POST
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 10:51 AM
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DENNYP
  • ✓Experienced Mechanic
  • 1,824 POSTS
there are two of them. One is in front of the catalytic converter, and the other is behind it. What trouble codes are you getting?
Sep 29, 2008 at 3:16 PM
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