Replace Toyota RAV4 Air fuel ratio sensor & Toyota RAV4 Lambda sensor Purchase Toyota RAV4 Fuel to air ratio sensor replacement. Maintaining the air fuel ratio (AFR) sensor in your Toyota RAV4 is crucial for optimal performance and fuel efficiency. To extend the sensor's lifespan, avoid using leaded fuels and ensure that your engine is running correctly to prevent the sensor from overworking. Signs that an AFR sensor may need replacing include poor fuel economy, erratic engine behavior, and illuminated check engine light. When selecting a new AFR sensor, it's important to choose one that matches your RAV4's specifications. Look for high-quality, durable materials and consider sensors with broader fuel detection ranges for enhanced accuracy. During installation, follow the manufacturer's guidelines closely to ensure proper placement and connection, safeguarding the sensor's function and longevity. Shop with us for a seamless purchase experience and elevate your RAV4's performance today.