logger program?
With Autotap you pay them $199.95 and you get a hardware cable, software and instructions with OBD2 GENERIC parameters. There's a list of generic param's on the site. For $99.95 more you can upgrade to GM ENHANCED parameters (listed on the site also).
EfiLive is software that can be added on to your autotap cable and it's LS1 specific for $238. You only need the cable with generic to use efilive. Efilive is also worth the money over enhanced parameters by a long shot.
Hopefully this will at least get you started and if you have any other questions ask 'em and I'll try to answer them.
ps
To save money think "used"
Keep your eyes out in the "for sale" sections here, at LS1.com, and LS1Tech.com
www.scantool.net
I have one I used for a while before upgrading to EFILive if you want to save a few bucks, message me offline waypoint@warpten.com







