There's a company that sells a software package called "OBDII Automotive Scan Tool and Virtual Dashboard". Website is http://www.obd-2.com. You can monitor up to 1200 parameters, datalog, etc. This is big with the 'Vette guys, which I used to be a part of. Has anybody here used this program? Here are some screen shots:

 

I have it. It is OK for some logging but it does not have the best resolution.

I am saving up to buy a Raptor data logger.

Mike

 

Have not tried that but I do have the Raptor and the resolution is very good for the price.

Jody