microRusEFI should be set for Hall
Schematics
https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_1990
https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_1991
https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_1994
https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_1995
InteractiveBOM