Unfortunately, MAF's aren't simple passive resistances . They produce a voltage that is a function of the volume and density of air going by. I have attached a technical article from Bosch describing the voltage function w.r.t. air mass.
The Unit can be monitored on the engine to see if the voltage output matches the design centerline with a voltmeter . The attached description is not all - encompassing , but you should be able to access the output voltage on the sensor on you caras the other connections are ground , supply , and an air temperature voltage.
I hope this helps.