Mass Air Flow (MAF) sensor measures the amount of air by weight through changing voltages or frequencies

MAF Sensor sends information collected to the onboard computer

The computer uses this and other inputs to calculate the correct amount of fuel delivered

Symptoms of failure MAF include poor starting, engine surging, engine stalling, a check engine light, and no-start conditions. Sensors are non-serviceable, replace sensors that are non-functional

OEM Part Number: AF10224 917-986 MAS0237 4M-1105 MF21016N 815-911 4M-1057 74-10043 64-1908 213-3360 MF21016 MA243 158-0964

Fit type: Vehicle Specific
Mass airflow sensors measure the amount of air by weight through changing voltages or frequencies and sends this information to the onboard computer. The computer uses this and other inputs to calculate the correct amount of fuel delivered. Symptoms of failure include poor starting, engine surging, engine stalling, a check engine light, and no-start conditions. Sensors are non-serviceable, replace sensors that are non-functional. began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001:2008/TS16949 certified company, we are committed to supplying the highest quality products. Vehicle Fitment: 1996-2001 BMW 323i 2.5L, BMW 323is 2.5L, BMW 328i 2.8L, BMW 328is 2.8L, BMW 528i 2.8L, BMW M3 3.2L, BMW Z3 2.8L3.2L