The DELPHI Mass Air Flow Sensor (AF10272-12B1) is engineered to precisely measure the amount of air entering your engine's intake manifold. This critical data is then sent to the engine control unit (ECU) to help determine the correct fuel injection rate. Proper functioning of the mass air flow sensor is essential for maintaining fuel efficiency, reducing emissions, and ensuring smooth engine operation. A faulty sensor can lead to various drivability issues, including rough idling, hesitation, stalling, and poor acceleration. DELPHI is a trusted brand known for its quality automotive components. This sensor is designed to meet or exceed original equipment specifications, providing a reliable replacement for your vehicle's worn or malfunctioning mass air flow sensor.