Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture XEVO "XLS1562" - Not availableVAUXHALL - Corsa, Corsavan, Astra, Astravan; OPEL - Corsa, Astra H; FIAT - Doblo, Linea