The DELPHI Mass Air Flow (MAF) Sensor, part number AF10289-12B1, 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 amount of fuel to inject for efficient combustion. Proper functioning of the MAF sensor is vital for maintaining optimal engine performance, fuel economy, and emissions control. A faulty MAF sensor can lead to various drivability issues, including rough idling, hesitation, stalling, and reduced power. Replacing a worn or malfunctioning sensor with a quality part like this DELPHI unit can restore your vehicle's performance and efficiency. This sensor is designed to meet or exceed original equipment specifications, ensuring a reliable fit and function. Trust DELPHI for high-quality engine management components that keep your vehicle running smoothly.