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
have the same problem?
Monday, February 8th, 2010 AT 9:50 PM
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.