Modern vehicles rely on a complex network of sensors and computers to optimize performance, fuel efficiency, and emissions. Among these critical components, the oxygen sensor (O2 sensor) plays a vital role in ensuring your engine runs efficiently while minimizing harmful exhaust emissions. But how exactly does this small sensor make such a big difference? In this blog post, we’ll explore how oxygen sensors work, their impact on fuel economy, and why they are essential for reducing vehicle emissions. What Is an Oxygen Sensor? An oxygen sensor is a small electronic device located in the exhaust system that measures the amount of unburned oxygen in the exhaust gases. Most modern vehicles have at least two oxygen sensors: 1. Upstream (pre-catalytic converter) sensors – Monitors oxygen levels to help the engine control unit (ECU) adjust the air-fuel mixture. 2. Downstream (post-catalytic converter) sensor –...
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