Question about 1999 Chevrolet Blazer
I have a 1999 chevy blazer with a 4.3l I took the motor out and had it rebuilt now the check engine light is on and it is for the heated o2 sensor bank 1 sensor 1 replaced all 3 sensors and the light is still on looking for a wiring diagram for the o2 sensor
Sounds like you know what you are doing, sometimes the codes have to be removed after repair, i'm not sure whether or not your vehicle requires this. If it is just a light bothering you try and clear the code and see if it comes back. Some Advance Auto or O'reilly has a tool to do this free of charge
Posted on Oct 13, 2009
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Posted on Jan 02, 2017
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