Yes reving engine would cause higher MAF freq,
At the top of the controller there is a freq map. You should see that around 2.5 volts equals 6,000 Hz.
Make sure the FULL setting is like about 4 volts.
Use Ease scanner you should see when fuel trims go richer then what the MAF output freq is
Yes use file manager at bottom and it will allow images to be attached and you can also insert text then as what image is about. Image has to be 350K bytes or less so compress and size image if it is too large to help save diskspace on our server.