the spots where all the data blips to zero is where you are making changes to the parameters. Its a bug in PLC. Don't spend time chasing that.
you need to chase thru your analog wiring (MAP is the most important one) and find the flaky spot. With the engine idling, wiggle the connections gently until you find the spot that upsets how the car runs.
I looked into Tango, and it seems too spammy. If you get Skype installed I can chat on that.
Bob