Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture NAP "CLS10140" - Not availableVAUXHALL - Corsa, Astra, Corsavan, Agila, Meriva; OPEL - Astra, Agila; SAAB - 9-5, 9-3