This DELPHI Mass Air Flow (MAF) Sensor, part code AF10291-12B1, is engineered to accurately measure the volume and density of air entering your vehicle's engine. By providing this critical data to the engine control unit (ECU), it enables precise adjustments to fuel injection and ignition timing. Accurate air-fuel ratio management is essential for maintaining optimal engine performance, fuel efficiency, and reduced emissions. A malfunctioning MAF sensor can lead to poor acceleration, rough idling, increased fuel consumption, and check engine lights. This sensor is designed to meet or exceed original equipment specifications, ensuring reliable and consistent performance. Trust DELPHI for quality components that keep your engine running smoothly and efficiently.