Ford Fiesta VI 1.0 oxygen sensor 5V6A-9Y460-AA 1871327 original position replacement

Ford Fiesta VI 1.0 oxygen sensor 5V6A-9Y460-AA installed on exhaust pipe; monitors oxygen content and feeds signals to ECU to precisely control air-fuel ratio, ensuring combustion efficiency and emission compliance. OEM number 5V6A-9Y460-AA; fits Ford Fiesta VI 1.0 and compatible with 0258017291, 1827139, C1BY-9Y460-AB, among others. Installation difficulty: medium; labor about 0.5–1 hour; avoid damaging threads. If the check engine light is on, idle is unstable, or fuel consumption is clearly increased, replace promptly.