To start, this is only the second EM that I have owned so I am struggling. I picked up this Grand Prix project that the score motor would just spin on at the time of purchase. I have been reading and working for over a week and I now have it fully working (super fast and fun game by the way).
However, the ball in play stepper will not step from ball 2 to 3 or from ball 4 to 5. If I manually move it from 2 to 3 and from 4 to 5 it runs perfectly. However if not it just stops. Flippers and coils are still live but not ball gets kicked out and it does not move from 2 to 3 and it will do the same thing between 4 and 5.
I have cleaned it and it all moves freely. I am not an EM genius by any means but I know that there are a ton of them on this site so I am fishing for some ideas.