Oxygen (O₂) Sensor Explained — What It Does, Where It Is & How to Check Air-Fuel Ratio
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YouTubeCAR Doctor PRO
Oxygen (O₂) Sensor Explained — What It Does, Where It Is & How to Check Air-Fuel Ratio
In this detailed video we explain everything about the car oxygen (O₂) sensor — what it is, how it works, where it’s mounted, and how it helps the ECU control the air-fuel ratio (AFR). Whether you’re a DIY mechanic or a car enthusiast, this guide covers both theory and practical checks you can do with basic tools. What you’ll learn in ...
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