I keep on running the engine but it won't start.  No gas smell from the tail pipe.  Once it started I can go anywhere, but it won't start again.  Well, it does at great difficulty and after many tries.  
I noticed the coil being hot.
Checked all the things visually and all is well.
For a few days it helped to plug the idle unit's plugs together.
Now, it is worse by the day.

Would it be one of the sensors, but which one?
What is the your guess?
Zoltan