Okay - I bought a 89 Convertible yesterday.... the AC and everything was perfect.
today, the AC wont turn on at all, and the wipers aren't working either....
I checked the fuses the best I can, but no difference...
Can anyone tell me how the two are related?

 

sounds like you need to do some resoldering.
in mine when i got it, i had to resolder the cpu, logicon, headsup idiot lights, and check the wiper switch for bad solder joints as well.
dont know why mazda had these parts soldered so poorly to begin with.
do a search on what and where to find each thing, its all on the boards somewhere. lol

 

It appears the problem is by the fuse box in the kickpanel.
If I play with it it comes and goes....
no biggie.... I'll just kick it when it doesnt work for now

 

lol, electrical problems in the 7's are always a pain!! Check the inside of you wiper switch they are known to just stop working. Solder issues in the circuit board of the switch, this goes for the climate control switches. The 7's had solder issues on just about every circuit in the car, what do you expected though ur car will be 20 years old in 2 years. Mines 21 now and the value just went up this year!!

Chris

 

Yeah - Im sitting here reading everything I can about the 13B N/A - Obviously I want more power out of it, but before I start building a motor, I am going to do some little bolt ons to this one.

 

Start with the exhaust and air intake, thats where you get the most gain outta N/A. Adding turbo and porting get alittle more tricky!!

C