1997 Chevy Cavalier Random Misfires

Here is my situation, I have a 1997 Chevy Cavalier Z24. It has been having issues. The check engine light has been coming on.It idles rough, and sometimes dies while I wait for a light to change green. Sometimes when I accelerate, I feel a backwards jerk, and then it goes. I had it coded, and it came back random misfires. So I changed out the Spark plugs and boots. It was fine for a couple days then the same problems started again, and the check engine light came on. I checked the plugs and boots I just installed, they were fine, so I changed out the ignition coils. It was fine for a couple days then the same problems all over again. I put some injector cleaner in when I last got put gas in the tank and that seems to have no effect. I am looking at getting an ingnition control module. Is this the right next step, or am I looking in the wrong direction to fix this thing?