yep, sorry for the two trivial questions but I'm new and I have yet to clear my ideas about this wonderful world of ODB....
for example, this ELM327 ? compatible with all communication protocols such as rs232,can,kline ect ect???
and these protocols are always present and active in the odb of any car, or any car uses a different protocol?
I'm doing a great casino with vag-can-kline ect ect and all this sea of information.someone could give me an explanation as to the great lines...I would like to understand better ...grazieeee