Well, I do have two MS boards on my desk right now. Both are completed, however I cant run my car on neither of them.

I do get RPM signal however its not constant, it's disapearing - and I'm not able to start the car (however I do get backfires). I've tried resoldering 2nd trigger to optoisolator (ms2 extra docs), and the simpler version from miataturbo wikidot. It works exactly the same for both.

Here is a screenshot from tunerstudio.