Does anyone know of a free OBD reading or tuning software? i have a usb connected OBD II plug, but i don't have a program. I want 2 programs actually, one that can just let me read everything that the computer is monitoring (i.e. timing advance, air flow, fuel pressure, etc. and another with which i can tune the computer....
thanks

 

Most, if not all, will charge for the programs, as they take quite a bit of time and expertise to design and write.

 

this one seems to have a free trial download
.... if you already have a suitable cable

http://www.obd-2.com/#order

If you have a iPod Touch or iPhone
there are some low cost apps coming to read OBD-II that way

other links

http://autoenginuity.com/

http://www.davisnet.com/drive/products/carchip.asp

http://www.actron.com/

http://www.scangauge.com/