Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture Vemo "V70-76-0013" - Not availableTOYOTA - Avensis, Auris, Corolla, Kluger, Verso; LEXUS - RX, LS; AUDI - A4, A3