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1996 Chevy Lumina oxygen sensor

Tiny
MJPORTILLO78
  • MEMBER
  • 1996 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 234,000 MILES
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?
Tuesday, September 30th, 2008 AT 12:29 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
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.
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Friday, October 3rd, 2008 AT 6:38 AM

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