Posts Tagged: how an oxygen sensor works

What an Oxygen Sensor Does and How it Works

How Oxygen Sensors Work and How to Diagnose Them Correctly Quick Summary An oxygen sensor’s job is to measure how much oxygen remains in the exhaust after combustion and report that information to the engine computer (ECM/PCM). The ECM uses this data to adjust the air-fuel mixture in real time so the engine runs efficiently and cleanly. An oxygen sensor’s job in a car is to measure how much oxygen remains in the exhaust after combustion and report that information to the engine computer (ECM/PCM). The ECM uses this data … Read More