It's back to the DEBOK for the most comprehensive tutorial on the MAF sensor you'll find.
Become an expert in air induction diagnosis with this video!

Part 2 is here:    • Diagnosis and Understanding: MAF Sens...  

Other videos on my channel on induction and stoich maintenance:
Fuel Trim:    • Secret of Engine Problem Diagnosis- F...  
MAP Sensor:    • MAP Sensor Diagnosis and Understandin...  
TPS Sensor:    • TPS (Throttle Position Sensor) Diagno...  
Air Fuel Sensor:    • Air/Fuel Wideband vs Oxygen Sensors (...  
IAT Sensor:    • IAT ( Intake Air Temperature Sensor )...  
IAC (mentioned):    • P0171 Case Study from Hell 2000 Trans...