This FEBI BILSTEIN Mass Air Flow (MAF) sensor, part number 28363, is designed to accurately measure the volume and density of air entering the engine's intake system. By providing precise air intake data to the engine control unit (ECU), this sensor plays a crucial role in calculating the correct amount of fuel to inject. This ensures an optimal air-fuel ratio for efficient combustion, leading to improved engine performance, fuel economy, and reduced emissions. FEBI BILSTEIN is known for its commitment to quality and precision engineering. This MAF sensor is manufactured to meet stringent standards, ensuring reliable and consistent performance throughout its service life. Replacing a faulty MAF sensor can resolve issues such as rough idling, poor acceleration, increased fuel consumption, and check engine lights.