I recently purchased a stock 91 miata. After driving it around for a little bit, i realized that the car was overheating. I popped the hood and sure enough, there was a coolant leak. So I fix the leak, but the car is still over heating; the cooling fan is not working. So I end up testing the relay by bypassing it with a wire while the motor was warm and it worked. So I replaced the cooling fan relay and drove it around for a little bit. The tempguage was fairly normal, yet when i cheched the fan (while the motor was hot), it was not working. Whats going on here?