This DELPHI Air Mass Flow (MAF) Sensor, part code AF10506-12B1, is engineered to accurately measure the volume and density of air entering your vehicle's engine. Accurate air intake measurement is fundamental for the engine control unit (ECU) to calculate the correct amount of fuel to inject. This ensures efficient combustion, optimal engine performance, and can contribute to better fuel economy. Replacing a faulty MAF sensor can resolve issues such as rough idling, poor acceleration, increased fuel consumption, and check engine lights. This DELPHI sensor is designed to meet or exceed original equipment specifications for reliable operation.