This DELPHI Air Mass Flow (MAF) Sensor, part code AF10205-12B1, is engineered to accurately measure the volume and density of air entering your vehicle's engine. This data is critical for the engine control unit (ECU) to calculate the precise amount of fuel needed for combustion. Proper functioning of the MAF sensor ensures your engine operates efficiently, leading to improved fuel economy and reduced emissions. A faulty sensor can cause various drivability issues, including rough idling, hesitation, stalling, and illuminated check engine lights. Trust in DELPHI's commitment to quality and precision engineering for a reliable replacement that restores your engine's performance and responsiveness. This sensor is designed to meet or exceed original equipment specifications.