fuel injector cylinder 1 going out after replacement, help

[Indolent]

ok ok i'm so going to cry lol

one of my fuel injectors took a shit on me, cyl 1, i check my spark plugs/plug wires i think they were fine or i just don't know how to check them, i replaced the fuel injector cause from the response from my other thread it was believed to be a fuel injector, well it was, then i replaced with a spare injector i had from my other motor, drove around for a few hours, it was fine, come back home turn the car off, chilled for about an hour, started car back up to go out, shit sounds like a dman wrx, running on 3 cylinders again, fuel injector 1 goes out or cylinder one goes otu thwatever...damn, then i replace it with another spare injector, works fine, drove around for a few hours, turned car on, shit it took another shit, assuming its the fuel injector, drive around, cause i have no other way home for miles like that, soudns liek a wrx, running 3 cylinders, and it's like it's running 4 sometimes, but it's like maybe the cylidner isn't getting enough fuel injection or whatever since it seems liek it's running normal for a split second or so, or whatever, any ideas? some bad fuel injectors? something clogging taking a shit on fuel injector 1? motor's fucked? i ono valve float? bad oil leading to so n so or i ono, i ono anything i just want to know what my problem could be, need to take car to get smogged soon, well not really just state ref, so i don't wanan be fucked more tahn i already am or could be lol..so yeah, HELP!