Obd2 car computer

I like mucking about with Arduinos and fancied knocking up something I can use as a data logger for things like

Water temp

Battery voltage

Oil temp

Throttle pos

Engine load

Fuel consumption

I know the car displays some of these already but the mk2 my Mrs has doesn't and I'm just interested in knowing a few things about what's going on.

Has anyone tried to use obd2 to log before and which pids are in use?

Also, on my old Focus, I had some information from a mate that worked for Ford so I could decode the canbus traffic directly (I have some tools for this). Is anyone aware of doing this? The decoding information usually comes in the form of "Vector .DBC" files if this helps to know what I'm really asking for 😉