Oxygen, Lambda Sensor Exhaust Oxygen Sensor (O2 Sensor) Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture NAP "CLS10113" - Not availableBMW - 3 (E91, E92), 5, 1, 6, 7 (E65, E66, E67); CITROËN - Jumper, C5; DODGE - Nitro