The DELPHI Mass Air Flow (MAF) Sensor, part number AF10266-12B1, is engineered to precisely measure the amount of air entering the 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. A malfunctioning MAF sensor can lead to various drivability issues, including poor fuel economy, rough idling, hesitation, and even engine stalling. Replacing a faulty sensor with a high-quality part like this DELPHI unit can restore your vehicle's performance and fuel efficiency. This sensor is designed to meet or exceed original equipment specifications, ensuring a reliable and direct fit for compatible vehicles. Trust DELPHI for quality components that keep your engine running smoothly.