So a few days ago my car developed a horrible misfire in cylinder 4 so I pulled the plug and the electrode was smashed to where there was no gap. Looked like something had hit it a few times. Replaced the plug, ran fine. Later that day boom another miss, cylinder 2 and 5. Same issue. So I replaced all the plugs. Now today was running great. Hitting boost no problem. No issues then boom, literally cruising at 3k and boom 2 more random misfires. And I bet the plug gaps are closed again. Any idea of what’s going on?