- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "7903" - Not available
ALFA ROMEO - 156, 166, Spider, GTV, 147; AUDI - A4, A6; FIAT - Doblo, Punto; LANCIA - Thesis; CITROËN - Xsara, C5
Additional numbers
NGK:
OZA659-EE58