Bi0H4z4rD:
Ouch, my missunderstanding too i guessAnyway code is not mine, im just modding it to do some other stuff, but that's the part i need to get working.
If you want to see the full project for the code i have posted, you can find it here:
GitHub - Magister54/opengauge: Automatically exported from code.google.com/p/opengauge
BR
Hey, that's a nice project! Think I've googled you up a couple years ago 
Getting some data off that OBD connector hidden somewhere under my steering wheel is one of the things I'd like to do sooner or later... Just bookmarked your project 