So, I bought an OBD2 scanner and torque pro for my phone. I'd like to log data just to make sure things are functioning as they should.

Any recommendations on the most important PIDs to monitor? Thanks.

 

In for the replies... I just paired an OBD2 Bluetooth dongle to my newly installed Android head unit. So far, I have only managed to set up a screen showing coolant temp (in Fahrenheit) and MPH..

I’d really like to set up logging in a fashion that correlates speed, RPM and coolant temp per driving session. After paying attention to my driving habits and temps for about a week, I think I am seeing a pattern where the car plateaus at about 194 F and then at about 210 F. I think good logging would go long way in helping me figure out why.

 

You should be able to log a number of PIDs and then export them to a program like Excel. Then you can graph them and see the correlation.