1990 Miata Wiring Diagram Low rpm signal, no spark Miata megasquirt ms2 signal rpm power pinout mazda wont starting nb db37 standalone harness mx5 problems miataturbo finir Low RPM signal, no spark - Miata Turbo Forum - Boost cars, acquire cats. Low RPM signal, no spark - Miata Turbo Forum - Boost cars, acquire cats. Check Details ← 1990 Honda Civic Distributor Wiring Diagram 1990 Ford Alternator Wiring Diagram → Share with friends Link copied