- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- Delphi "ES21132-12B1" - Not available
SEAT - Ibiza, Cordoba, Leon, Toledo, Altea; VW - Polo, Golf; AUDI - A6, S6; SKODA - Fabia, Octavia