Ford EcoSport 2012-2019 Oxygen Sensor CV1A-9F472-AA Air-Fuel Ratio Sensor OEM Replacement

When your Ford EcoBoost Focus (Wing-area) engine shows fault light and symptoms of rough idle, poor acceleration or high fuel consumption, this typically indicates aging or failure of the oxygen sensor (air-fuel ratio sensor), which cannot accurately monitor exhaust oxygen content. This sensor, when working properly, provides real-time feedback of the air-fuel ratio to the ECU to ensure precise injection, maintaining combustion efficiency and emissions. This product is an OEM replacement, OEM number CV1A-9F472-AA, suitable for Ford EcoBoost 2012-2019 models. Installation must be performed with a cold engine to avoid scalding; use a dedicated socket to carefully remove to prevent thread damage; after installation, clear fault codes and road-test to confirm signal normal.