The DELPHI Mass Air Flow (MAF) Sensor, part number AF10556-12B1, plays a crucial role in your vehicle's engine management system. It precisely measures the volume and density of air entering the engine, providing vital data to the Engine Control Unit (ECU). By accurately reporting airflow, the ECU can then calculate the correct amount of fuel to inject for optimal combustion. This results in improved fuel efficiency, reduced emissions, and smoother engine operation. A malfunctioning MAF sensor can lead to poor performance, stalling, and increased fuel consumption. This sensor is engineered by DELPHI, a trusted name in automotive components, ensuring reliable and consistent performance. It is designed to meet or exceed original equipment specifications, providing a direct fit for compatible vehicles.