Where are the IAT wires for 1991-1993 Mazda Miata?
The IAT resides in the Air Flow Meter (AFM) that resides on top of the stock air box on the driver's side of the engine. It shares the same wiring harness as the AFM.
The output wire is the red wire with thinner colored stripe (forget the stripe color though).
The IAT sensor plug-in is located on top of the air intake right where the air filter is located. I am still trying to find out which color wires are the IAT sensor since the plug-in has 5 wires. If someone has a shop manual and can identify the right two wires, we will have this one licked. a and b are the iat sensor wires which are tan wires