AboutMp2 Expertise I prefer to answer questions relating to the Miata since this has been my area of specific
expertise since 1991. I can answer questions relating to the other Mazda models however
some limitation of expertise may reduce my accuracy.
Experience Mazda technician since 1987, shop owner and specialty are regarding the Miata since 1991 covering mechanical, electrical, trim and body. Specializing specifically in drivability concerns.GKHS 1985, BVC 1987, MNA 1989, ASE Master Technician Mechanical 1995, ASE Master Body/Paint/Collision 1996
Education/Credentials GKHS 1985, BVC 1987, MNA 1989, ASE Master Technician Mechanical 1995, ASE Master Body/Paint/Collision 1996
Question Is there multiple speed for driver side fan on 90 miata/manual. How can I check to see if it's hooked up correctly?
Answer The driver side fan is the main cooling fan. It has one speed and cycles as directed by the ECU based on the temperature sensor and AC usage. It is common for 12 volt fan motors to fail yet still spin, in other words the motor does not have the ability to make power but, the armature is still delivering enough power to rotate the motor. If it is working properly the motor will pull air and flow will be obvious as felt coming out of the shroud. If not a new motor is likely the solution.
