how do i see live actual values when car is running

[frankieboost]

this is my first s300 v2 my car was tuned by the man him self Chris miller , i just want to know how to see live actual values from sensors when the car is "on" for diagnosis purposes not for tuning . I made my own display on the laptop and the ecu shows its connected but my display shows no readings

please help

[Spunkster]

Hit F10 or the lightning bolt button to begin datalogging. F9 start and stops recording as well as the button with the red dot.

[frankieboost]

Hit F10 or the lightingin bolt button to begin datalogging. F9 start and stops recording as well as the button witht he red dot.

thanks allot ill try this when i get home