- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- BOSCH "F 00H L00 421" - Not available
CHEVROLET - Silverado 1500, Silverado 2500, Tahoe, Suburban, Cheyenne; GMC - Yukon, Canyon; CADILLAC - Escalade, CTS
