So today I monitored the trim levels with ISTA (surprisingly more straightforward than VCDS), and here are the results:
This is the first under idle (when I start up the car):
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This is the second when I raise the car to 3000 rpm:
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Third comparison of when I raise the car to 3000 rpm:
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And here's the 4th pic after I ease of the accelerator from 3000 rpm and let the car idle:
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Do these values look normal? I also tried disconnecting the MAF and left it disconnected for 10 seconds, and engine noise started increasing so I connected it back on.