Oxygen sensors are vital components in modern vehicle engines, ensuring optimal performance, fuel efficiency, and compliance with emission standards. They play a critical role in monitoring the oxygen levels in the exhaust gases and adjusting the engine’s air-fuel mixture accordingly. This guide will provide an in-depth understanding of how oxygen sensors work, their importance, common causes of failure, signs of malfunction, and how to maintain them for better longevity.
What is an Oxygen Sensor?
An oxygen sensor is a small but essential device that measures the amount of oxygen in the exhaust gases of a vehicle. It provides real-time data to the engine control unit (ECU), helping it adjust the air-fuel ratio to improve combustion efficiency. Oxygen sensors are usually installed in the exhaust system, either before or after the catalytic converter, and can directly influence fuel consumption and emissions.
