Boost and fuel live data.. learning what gauges to read and why?!

Im trying to learn about my gauges what to read and why it needs paid attention too. My A4 B7 2.0 for a long time during hard acceleration the pedal would cut out and go limp. We’ll it did it during hard acceleration and I have the data to give me some detail. My boost actusl is 970mbar while specified is 260 while sitting idle. Can anyone help !?