Ok I need some help. I have a 94 MX-3, 4-cyl, 124k, Manual. There seems to be no problems at all when I am driving but when I stop at a red light 50% of the time it stalls. When I stop it idles at 1000 RPM for a couple seconds then drops down between 200-400 RPM and idles rough, then it either stalls or will go up to 700 RPM and be fine. Does anyone have a clue on what may be the problem?

 

Sounds like the BAC valve on the throttlebody. Try cleaning the throttlebody with carb spray.

 

That seems to have done the trick, thanks