Originally Posted by Motorcharge
If you have a smartphone do yourself a favor and get an OBDII bluetooth transmitter and run a smartphone app off it. Much easier to keep the bluetooth unit with you and odds are you'll always have your phone with you anyway. There are a ton of the transmitters out there for under $20 and a bunch of free apps for Droid and iPhone.
This direction is interesting, and maybe the way to go, I owned and recently sold an Auto-Enginuity PC based scan program for my Ford Powerstroke Diesel.
You can't effectively troubleshoot ANYTHING on that rig with out LIVE data, and that sure covered it, But at $400.00 for the software and Ford bundle, I didn't want to purchase the Chrysler (Jeep) data bundle for what few sensors it would read....for those LOT newer Jeep and vehicles that have sensors to monitor your coffee temps, it may be worth the $$$. Anyway I digress.
I will look deeper into the Iphone app and bluetooth option, as "live data" sure is nice to troubleshoot with.