[NikFu S.]

I was actually thinking that earlier. It shouldn't hurt anything. Go for it.
Spray it right into the TBs.

It's just a volatile mixture of fluid. For you it will simulate having a small amount of fuel injected and will tell us whether you have a fuel versus spark/sensor/other issue.

I'm still banking on it being a sensor. Have you tried to start it today? Whether it is flooded or if the pump is going south it may shudder to life at least until you turn it off again, at which point it may again go into hibernation.