"O2 and AFR Sensor Tech: From Zirconia to Planar and Beyond" offers an in-depth exploration of oxygen sensors and air-fuel ratio (AFR) sensors, focusing on the latest technologies and testing methods. You'll learn about the differences between zirconia and titania sensors, how planar sensors improve response times, and the specific functions of 4-wire and 5-wire AFR sensors. This course is designed to enhance your understanding of sensor operation, diagnostics, and the critical role these components play in engine performance and emissions control. Whether you're a seasoned technician or just starting out, this class will equip you with the knowledge and skills to handle any sensor-related challenge.