Quiz: What is the role of the O2 sensor in an automobile’s engine December 27, 2024 by Alex Turner What is the role of the O2 sensor in an automobile’s engine management system? Discover more about Vehicle Engine and Automobile at our home page. A) To monitor the level of oxygen in the exhaust gases and adjust the air-fuel mixture for optimal combustion. B) To measure the temperature of the engine coolant to prevent overheating. C) To assess the level of fuel in the tank and send alerts for low fuel. D) To control the ignition timing in the engine for better fuel efficiency. Submit Answer