1999 MAZDA MIATA User Comment / Complaint

This is a problem that read in the the miata's forum. my 19'99 miata is having a problem with the ignition coil, and the sensors will say about a problem in the catalytic converter. i recently got my car, and is only 35k, but the limited warranty from the dealer just expired a while ago. from the large amount of people describing the problem along the internet (you can read it here: http://www.miataforum.com/cgi-bin/ultimatebb.cgi?ubb=get_topic&f=27&t=000103), i don't understand why mazda is not doing a recall about this problem.