Random misfiring after replacing injector and removing others

Hi there, I’ve been trying to fix the misfiring going on with my car listed above. In the beginning I had misfires and open circuit on 5 and 6 code for torch converter, random misfire but when resetting, 6 didn’t always come back. I’ve had it throw all sorts of codes at me in the process troubleshooting down the line. So far I’ve replaced the PCV valve and hose, all spark plugs, all boots, and injector 5. In the process I did also switch injectors 2 and 6 to see if the codes moved but they didn’t so I put those back. After doing all this the car was running great for a day and check engine light actually went off but then day 2 it started misfiring again. It’s now got a bunch different codes. Random misfiring, misfire and open circuit on 2, 4, and 6, and torch converter. Injectors 1, 3, and 5 are under manifold but I tested ohms on 2, 4, and 6 injectors and 4 and 6 were 14.2 but I couldn’t get a good reading on 2 because it was bouncing around and jumping up past 16. I felt like that injector on 2 was really loud too and I could touch the rail and really feel that thing kicking harder then the others.

What would you do next? Any help is so so greatly appreciated! I am new to all this so I know I’ve made things harder on myself then necessary due to the lack of experience. I’m hoping I can get some direction on what to do next so I don’t take the long drawn out route like I have been. I’m in dire need of figuring this out because I’m missing work for over a week now. Help!