1995 Chevy Blazer O2 sensors

Tiny
BUCKEYEFANJD76
  • MEMBER
  • 1995 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
I need to know how many o2 sensors there are on a 95 chevy blazer I changed 2 but the check eng. Light says a bad o2 sensor
Monday, February 8th, 2010 AT 9:50 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
There are 4. 2 pre and 2 post. In other words 2 before teh converter and 2 after. Or if you have one converter 1 before an d1 after. They are both different. Your scan tool should tell you which one is giving you the problem.
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Tuesday, February 9th, 2010 AT 6:28 PM

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