- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- NGK "7971" - Not available
HONDA - Civic, Prelude, FR-V (BE), Stream; BMW - 3, 5; AUDI - A4, A3; ALFA ROMEO - 159, 156
Additional numbers
NGK:
OZA669-EE11