djthumper said:
I just got one myself,
ScanTool.net LLC - OBDLink SX Scan Tool/OBD Interface - ScanTool.net so far it seems pretty good. There is other software that you can get for it was well.
I just got the OBDLink SX interface with the ScanXL Pro software. They had a decent sale not too long ago. Eventually I'll get the GM specific "module" for the software as
well, so I can get ABS, drivetrain and some other codes that aren't covered by the generic OBD-II code sets.
I used to use one of their older ELM327 units, and it worked great with the free software. You could read/clear codes, get real time sensor data,
set up custom layouts so you could watch specific sensors instead of all of them, and, with a little hacking, you could log data.
The new software still does all that, allows for logging without hacking it, and there's some bi-directional functionality, so there's an opening for communicating
with the PCM and certain control systems. That part is a bit undeveloped, but some folks on the OS were using it to talk to the encoder for the 4wd at one
point. Not sure if they'd found other command functions, but if that gets developed a bit more, the only thing you couldn't do is update the PCM software...
Happy New Year!
Chris