Hi,
The video shows the inspection of the air flow meter in a Porsche 944 Turbo in the installed condition. In addition to the simply checking of the temperature sensor with an ohmmeter, the signal of the flap opening is displayed and examined with an oscilloscope. Air flow meters were very common in the early injection systems from Bosch, which were installed by many manufacturers in their vehicles. So the video fits a great variety of models.
https://www.youtube.com/watch?v=tLCXFvCyyPY
The video has a German soundtrack, English subtitles are available on YouTube.
Enjoy it,
Jürgen