The DELPHI Mass Air Flow Sensor (AF10643-12B1) 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 sensor can lead to rough idling, poor acceleration, increased fuel consumption, and illuminated check engine lights. DELPHI is a trusted brand known for its commitment to quality and reliability in automotive components. This sensor is designed to meet or exceed original equipment specifications, providing a dependable solution for your vehicle's air intake system.