- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Topran "721 853" - Not available
CITROËN - Saxo, Xsara, ZX, Berlingo, Xantia, C5, Jumper, Evasion, Jumpy; PEUGEOT - 106, 206, Partner, 306, 406