What is the primary purpose of using Heated O2 Sensors (HO2s)?

The primary purpose of using Heated O2 Sensors (HO2S) is to improve the efficiency of the catalytic converter. These sensors are crucial for monitoring the levels of oxygen present in the exhaust gases. By providing real-time feedback to the engine control unit, the HO2S allows for the precise adjustment of the air-fuel mixture, optimizing combustion efficiency. As a result, the catalytic converter can operate more effectively, ensuring that it can convert harmful emissions into less harmful substances. This operation is vital for meeting emissions standards and enhancing overall vehicle performance.

The use of heated sensors specifically addresses the issue of accurate readings during cold start conditions, where conventional sensors may not function efficiently due to lower temperatures. By heating the sensor, it ensures accurate data is provided to the engine management system sooner, allowing for quicker adjustments and thus enhancing the catalytic converter's efficiency.