Replace Ford Focus Sensor Price. Browse Ford Focus Oxygen Sensor. Find Best Ford Focus Sensors. Explore Ford Focus Sensors & Ford Focus Exhaust Sensor. Maintaining car sensors in your Ford Focus is crucial for optimal performance, ensuring smooth operation and longevity. Regular cleaning and inspection can forestall the need for premature replacements, often signaled by erratic behavior such as sudden stalling or poor fuel economy. When selecting new sensors, it's important to consider compatibility and OEM specifications to guarantee a perfect fit and function. The market offers a variety of sensors, including oxygen, throttle position, and mass airflow, each with unique benefits like improved fuel efficiency and emission control. For installation ease, always follow the manufacturer's guidelines and use proper tools to avoid sensor damage, ensuring your Focus runs like a dream.