福特蒙迪欧前氧传感器 1S7F-9F472-AB 250-24301 原装位

Ford Mondeo upstream oxygen sensor (OEM number 1S7F-9F472-AB). Installed in the front of the exhaust pipe, before the catalytic converter, continuously monitors exhaust oxygen and feeds back to the ECU to adjust the air-fuel ratio, ensuring economy and emissions compliance. Installation difficulty: medium; estimated labor 0.5-1 hour. When the vehicle exhibits rough idle, weak acceleration, noticeably higher fuel consumption, or the check engine light (P0130 or P0135) is on, sensor replacement is usually required.