Ok Problem solved
![laughing %.%](http://www.aussiepinball.com.au/Smileys/classic/laughing.gif)
When doing the update and screwing in the cable by the access door I had inadvertently knocked the spade clip on the door isolation switch so it was barely touching. It would cause the coils to stop during heavy vibration. All is good
![laughing %.%](http://www.aussiepinball.com.au/Smileys/classic/laughing.gif)