Welcome to the board. That looks like fun. Stick up a picture of the circuit board, most Mazda Denso ECUs are quite similar to the Suzuki Denso ECUs of the same era.
__________________
1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine 2000 Suzuki Vitara 1.6 8V, many mods 2004 Suzuki Ignis 1.5VVT 4Grip 2006 Suzuki Jimny 1.3VVT JLX+ and many more.
I am Andrey from Chicago. I "race" (that's not exactly real racing) a mazda 121 on steroids and waist my free time trying to figure out how ECUs work :)
