Your vehicle's O2 sensor plays a significant role in its performance and if it's faulty, it's not something you should ignore ...

the O2 sensor (also called an “oxygen sensor” or “lambda sensor”) detects the level of oxygen in your engine’s exhaust flow. This level is reported to the ECU, which uses the data to ...

A lean air/fuel mixture burns slower and not as hot, so some fuel may not fully burn during the combustion cycle, eventually igniting in the exhaust system. A bad oxygen sensor, mass air flow ...

Cause: Leaks in the exhaust system, especially near the catalytic converter or oxygen sensors, can cause incorrect readings ...