Geely Emgrand/Citroën/Peugeot Oxygen Sensor 0258006028, multi-vehicle compatible, stable air-fuel ratio

Universal oxygen sensor for Geely Emgrand, Citroën, Peugeot and other brands: 0258006028/9635978280; installed on exhaust pipe to monitor exhaust oxygen and feedback ECU to adjust air-fuel ratio. Installation difficulty moderate; estimated 30–60 minutes; avoid thread damage. If idle unstable, fuel consumption rises, engine warning light on, or exhaust smell, sensor aging requires replacement to restore performance.