The HELLA Mass Air Flow (MAF) Sensor, part number 8ET 009 142-961, is engineered to accurately measure the amount of air entering your engine's intake manifold. This critical data is then sent to the engine control unit (ECU) to determine the correct amount of fuel to inject for optimal combustion. By providing precise air flow readings, this sensor plays a vital role in maintaining your vehicle's performance, fuel economy, and emissions control. A malfunctioning MAF sensor can lead to poor acceleration, rough idling, increased fuel consumption, and check engine lights. HELLA is a trusted name in automotive components, known for its commitment to quality and reliability. This MAF sensor is built to meet stringent industry standards, ensuring a direct fit and dependable operation for your vehicle.