Anyone have any experience with the 3140 scan tool? I'm thinking about picking one up and was wondering how they are and if they are good for the fiero or not.

I think that one does OBD1? I have an earlier version (3130) and it does not do OBD1. I use an older Actron scanner for my Fiero, and the Innova for everything newer. I like the Innova interface much better than the Actron so having one that does both would be ideal, at least in my opinion. But that just might be an OBD2 vs. OBD1 issue rather than Innova vs. Actron. So in the end I'm probably not much help here...