MAF, MAP & FUEL level/Economy

For some reason I am getting a MAF readings but my car does not have a MAF sensor.
Would like to understand why, since it is directly related to the fact that I am not getting a correct calculation on fuel economy.
Is the app calculating the MAF value from the MAP or is it just getting it from any other PID and assuming is a MAF reading. If yes then it is not doing it properly.

There should be an option on the garage under engine for us to tell realdash if we have a MAF sensor or not so that the calculations are made properly.


Turn off in the settings because you get the calculated MAF value

Where do I disable MAF? I found nothing about it, thanks.