what would cause a cylinder two miss fire

What is your question?

I have spark at the cylinder and holding 165 lbs of compression and also changed out the injector on that cylinder and the injector is pulsating. can the port from the injector to the cylinder be plugged? I had two other cylinder miss fire but changed both injectors and that cleared up one and found a broken wire on the other and all is good except cylinder 2 out of ideas help. thank you