The DELPHI AF10278-12B1 Mass Air Flow (MAF) sensor is a critical component for modern engine management systems. It accurately measures the volume and density of air entering the engine, providing vital data to the Engine Control Unit (ECU). This precise measurement allows the ECU to calculate the correct amount of fuel to inject for optimal combustion. A properly functioning MAF sensor contributes to improved fuel economy, reduced emissions, and consistent engine performance across various driving conditions. Designed and manufactured to meet stringent quality standards, this DELPHI MAF sensor offers reliable and durable operation. Replacing a faulty MAF sensor can resolve issues such as rough idling, poor acceleration, engine misfires, and illuminated check engine lights.