OK I'm definitely getting a random misfire every now And then. It started happening when it was really cold out and I didn't let my truck warm up before driving, but I haven't had the problem for the last couple of weeks then today we had a warm front come in and I got the miss again. No cel yet. I did clear the code I had almost a month ago And haven't gotten a cel yet. It was for my o2 sensors since I have no cats. Any ideas as to what's causing this random and annoying miss?

 

Iac valve will make it seem.like its missing idle air control