I e-mailed tweecer he told me that the site has'nt been updated recently and that my comp. dza1 and my brothers w3z3 (94) were supported. I did'nt ask about others. rec e-mail w# to find out. anyone used tweecer seems like the hot set-up!
You need to be fully aware, that these tuning solutions have a completely VERTICAL learning curve.
Tweecer does have decent support..
BUT. there aren't many folks that will be able to "teach you to tune"
..I'm not saying your not capable or that you cant learn.. just be forewarned it's a fairly intensive deal your about to get into.
When I first started looking for tuning stuff, I didn't really realize how important datalogging would be, nor how nearly impossible it was to datalog and EEC IV...
Literally nobody wants to support that old PCM platform, none of the new "cool stuff" works unless you have OBD2.
I went with the SCT software because I at the time felt it was the "best solution" for my tuning needs, without realizing I was stacking the deck against myself with literally no way to datalog the car.
For most near stock applications datalogging MIGHT not be so important, but the moment you have an "issue" or need to tune a blown or heavily modified combination you quickly become limited in what you can do without any way to datalog.
Hindsight being 20/20.. I would have
A: gotten an obd2 car from the start.
B: gotten tweecer for tuning my eec IV car
The value of datalogging in tweecer vastly overshadows any limitations that software may have compared to SCT ProRacer.. While the SCT software is probably "better" there is no viable means to datalog the results, which becomes an endless game of "trial and error".
..sorry for the novel.. hope this helps