Toyota Corolla Levin Oxygen Sensor 89467-02120 Replaces 89467-1227

Toyota Corolla (2007–2014) and Levin (2014–2019 1.8L) oxygen sensor, OEM 89467-02120, replaceable with 89467-1227. Installed on exhaust pipe, before and after the catalytic converter, monitors exhaust oxygen and feeds ECU to control air–fuel ratio precisely. Installation difficulty moderate; labor 0.5–1 hour; use a special socket and rust protection. When check engine light is on, fuel consumption rises, or idle is unstable, inspect and replace this sensor.