Atez Front Oxygen Sensor PE01-18-8G1, improves fuel efficiency.

Mazda Atenza (2014-2020) pre-cat oxygen sensor, OEM number PE01-18-8G1, fits 2.0L/2.5L SKYACTIV engines. Mounted on the exhaust manifold or front exhaust pipe; monitors oxygen content in real time to precisely control the air-fuel ratio, improves fuel efficiency and reduces emissions. Installation time about 0.5-1 hour; avoid thread damage. If check engine light is on, fuel consumption increases, rough idle or weak acceleration, check this part.