—INTRODUCTION: Mass Air Flow Sensor (MAF) determines the mass of air entering a vehicle's fuel injection engine, and passes that data to the engine control unit. This balances the air and fuel ratio to promote successful combustion. When the MAF Sensors goes bad, it can lead to various symptoms, ranging from an illuminated check engine light to rough running and misfiring. This premium mass air flow sensor (also known as mass airflow sensor) serves as a vital engine component to precisely detect the intake air volume entering fuel injection engines and transmit accurate data to ECU for optimal air-fuel ratio and complete combustion, effectively resolving common troubles caused by defective original parts such as check engine light on, rough idling and engine misfire. Crafted with precision machined sensing components and subjected to professional equipment testing plus 100% strict quality inspection, our replacement MAF sensor features quick signal response, excellent durability, lightweight build for direct plug-and-play installation and convenient disassembly & cleaning.