Spark plug wire popping out

[nismo1003]

the spark plugs wiring keep popping out , I don't know how it does that, I changed out to a new set of wire today, and it still does it. I was wondering if it's the spark plug tube seals is leaking air to cause it pop out ,before that I was using Iridium , then I swap it out with a new set of NGK copper plug 2 step colder, it still does the same thing, my car isn't running well, when it's at 0 and about to reach boost even at 1 psi, it wanted to die, My o2 narrowed meter isn't running right, I assume my o2 sensor went bad, I probalby should get it a new one, but then what does that tell me about the plug wire popping out? could it be running too lean?? at idle I only get 15Hg vaccum but it used to be 21, I know it leaks from the injector gasket, I will get that fix , but could that cost the problem?