Academia,
Great to see that you got to the bottom of your problems. I hope that I was of some assistance in helping you.
You will have to keep an eye to the exhaust because it has mesh in it and that will end up closing up the port again. I would suggest that you replace the muffler in the future.
The module would have caused a miss if not properly earthed out but you did no mention anything about a miss in your description before.
Thanks again for sharing your corrections to your machine as I think it will be of great assistance to all the members of the board.
