Yes the break or it breaking all the way can shut it down. As it is breaking you will get intermitent power along with low power causing coils not to fire. Fix the ground first, fire it up on the muffs run it if it runs good take it out and see. Keep it simple as what you have posted looks like a fuel issue also (not saying it is). One thing at a time.
Who ever said nothing in life is impossible.
Never tried slamming a revolving door.