If it had a bad O2 sensor the "check engine" would be illuminated and a code would be set indicating which sensor is at fault. You probably have other problems causing that backfire to occur.
oxygen
TWO.
A 1998 Chevy S10 Blazer has a total of two oxygen sensors. One is used for the upstream and one for the downstream.
should be on the exhaust manifold
No, they will need replaced if defective.
where is the oxygen sensor in a 1995 gmc jimmy
Nope. The computer doesn't even look at the oxygen sensor until the oxygen sensor reaches operating temperature.
Yes
I have a code DTC P0154.Bank 2 Sensor 1 no activity.Which sensor is this on my 96 Blazer?
what is the wiring diagram for the o2 sensor on 2000 s10 blazer. it has 4 wires. what what do they all do /
I need to know the location of the oxygen sensor 3 in bank 1 on a 2000 Chevy Blazer. Is it the one closest to Cylinder Head or closest to the catalytic converter. email address is wcannon@knology.net
They are screewed into the exhaust pipes. There will not be any after the muffler.