The MEAT & DORIA Mass Air Flow (MAF) Sensor, part number 86049E, is engineered to accurately measure the amount of air entering your engine. This precise measurement is crucial for the engine control unit (ECU) to calculate the correct amount of fuel to inject, ensuring an optimal air-fuel ratio. Proper functioning of the MAF sensor directly impacts engine performance, fuel economy, and emissions. Symptoms of a failing MAF sensor can include rough idling, hesitation during acceleration, poor fuel mileage, and illuminated check engine lights. Replacing a faulty sensor with the MEAT & DORIA 86049E can restore your vehicle's performance and efficiency.