[radz28]

I thought MPVI2s came with datalogging already... Maybe I'm misunderstanding (and I am sorry that I might not be using all the correct vernacular, so please bear with me)...

I have a 2+, but thought that, like the 2+, you could upload a Channel List to capture data to the interface itself. SO - I can go into the Scanner, and upload my current Layout (or at least part of it, including, most importantly, the Channel List). Then, when I'm driving, I can have the interface connected to the OBD II port on the car, and start datalogging, while I drive, without having to connect to my laptop (while driving). When I get home, I can stop datalogging, the interface saves the drive-data to it's memory, and I can download that scan file to my laptop, and analyze the Scanner data.

Is that what you're talking about? If so, I don't think you HAVE to use the TDN because you can save it right to your laptop and make the calibration changes you need/want. I don't think you need to use the app' as long as you have set-up the interface correctly.

Sorry if I am misunderstanding.