This TOPRAN Lambda sensor, part number 111 622, is designed to accurately measure the oxygen content in your vehicle's exhaust gases. By providing real-time data to the engine control unit (ECU), it plays a crucial role in maintaining the ideal air-fuel ratio. Proper functioning of the Lambda sensor is essential for efficient combustion, which directly impacts fuel economy and reduces harmful emissions. A faulty sensor can lead to increased fuel consumption, rough idling, and potential damage to the catalytic converter. TOPRAN is a reputable brand known for its quality automotive components. This Lambda sensor is manufactured to meet stringent industry standards, ensuring reliable performance and durability for your vehicle.