I am interested in getting a OBD-II scan tool. They really have come down in price over the years and the WiFi interface is just cool. Does anyone have a full list of the data is passed thought the OBD-II bus? I am probably going to go the iPhone route with a app like REV.I know you can get the...

I want to purchase the Cable and Software (that runs on a laptop) that will let me connect to to My 2006 Ridgeline to get OBD data and error codes. Anyone used one that they like or don't like.