Purchase Hyundai Oxygen sensor socket. Explore Hyundai Lambda sensor socket. Shop Hyundai O2 sensor cleaner & Hyundai Lambda sensor location. Maintaining the oxygen sensors in your Hyundai is crucial for optimal performance and fuel efficiency. Signs that an O2 sensor may require replacement include a rough idle, decreased gas mileage, and a persistent check engine light. To extend its lifespan, avoid using leaded fuels and ensure your vehicle is regularly serviced. When selecting a new O2 sensor, choose between titania and zirconia sensors, each known for their durability and precise measurements. For installation, always opt for high-quality materials and follow the manufacturer's guidelines to ensure a seamless fit. With these tips, you can enhance your Hyundai's functionality and maintain its resale value.