Hello fellow Toronado owner!
Your Toronado has a built in self diagnostic system that works via the digital dashboard. This link:
http://www.csciltd.com/gen_iv/ent_diag.htm explains how to work the system. Once you have the codes you can look up the problem online or buy a factory service manual (check eBay).
Although this looks complicated, once you try it this is easy to use. The car walks you though each step of the process. It is actually like playing an old video game.
Good luck!