Order Fuel to air ratio sensor for engine function. Find Air fuel ratio sensor, Lambda sensor available. Shop for Fuel to air ratio sensor replacement. For optimal vehicle performance and fuel efficiency, regular maintenance of your Air Fuel Ratio (AFR) sensor is key. Signs that your AFR sensor may require replacement include rough idling, decreased mileage, and an illuminated check engine light. When selecting a new sensor, consider the specific type compatible with your car—titania or zirconia—ensuring the material is durable and of high quality for longevity. Advanced features, like a heated sensor option, can provide quicker response times and more accurate readings. Proper installation is pivotal; always follow the manufacturer's guidelines to avoid damage and ensure peak operation. Keep these tips in mind to maintain your car's health and enjoy a seamless online shopping experience.