The DELPHI AF10511-12B1 Mass Air Flow (MAF) sensor is designed to precisely measure the volume and density of air entering the engine's intake system. This critical data is sent to the engine control unit (ECU) to calculate the correct amount of fuel to inject for efficient combustion. A properly functioning MAF sensor is essential for maintaining optimal engine performance, fuel economy, and emissions control. When this sensor malfunctions, it can lead to a variety of drivability issues, including rough idling, hesitation, stalling, and reduced power. This DELPHI MAF sensor is engineered to meet or exceed original equipment specifications, ensuring reliable and accurate air flow readings. Its robust construction is built to withstand the harsh conditions found in the engine bay, providing long-lasting service. Replacing a faulty MAF sensor with the DELPHI AF10511-12B1 can restore your vehicle's performance, improve fuel efficiency, and help resolve check engine light warnings related to air intake system faults.