1996 Chevy Lumina oxygen sensor

1996 CHEVROLET LUMINA
234,000 MILES • 6 CYL • FWD • AUTOMATIC
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MJPORTILLO78
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  • 1 POST
I was told my car has a bad oxygen sensor but how can i find out which one it is and their locations so that i can change them out. Also would this cause a misfire in my engin?
Sep 30, 2008 at 12:29 PM
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MMPRINCE4000
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
A scan tool will usually tell you which one is bad (upstream or downstream).

Upstream is located in exhaust in front of convertor and downstream is located in exhaust after convertor.
Oct 3, 2008 at 6:38 AM
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