How Many O2 Sensors Does A 2003 Chevy Trailblazer Have?

How Many O2 Sensors Does A 2003 Chevy Trailblazer Have? How many O2 sensors are on this vehicle? On your 2003 Chevrolet Trailblazer code p0133 is referring to the “front” oxygen sensor which is located in the exhaust manifold. Your vehicle uses only two oxygen sensors, the one in the exhaust manifold and another it … Continue reading How Many O2 Sensors Does A 2003 Chevy Trailblazer Have?