- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- EFI "301556" - Not available
BMW - 5, 7, 3, 8; BERTONE - Freeclimber 2
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EFI 301556 - Oxygen, Lambda Sensor BMW - 5, 7, 3, 8; BERTONE - Freeclimber 2