The Delphi Mass Air Flow Sensor - AF10386 is a sensor designed to measure the amount of air entering the engine of a vehicle. It is a crucial component in the engine control system, as it helps to determine the correct air-fuel ratio for optimal engine performance. This sensor is made by Delphi, a trusted manufacturer of automotive parts, and is specifically designed for use in a wide range of vehicle makes and models. It is a high-quality, durable sensor that is essential for maintaining the efficiency and performance of your vehicle's engine.