So I had a thread insert installed a few days ago on #3 (spark blow out)
Everything went smoothly on the install. Car starts up fine but now has a misfire on that same cylinder. Checked plug/cop and it seems to be fine.
Car cold starts and idles good until the idle comes down to 800 rpm then it starts to shake (very noticeable) and you can hear some sort of pop on the exhaust. Although the rpms stay at 800 somewhat consistent. It's hard to notice if it actually dips a little perhaps 50-100 rpms at the most. If you go above 1k you don't feel the misfire at all and drives fine. I am worried it might be a damaged cylinder but that's beyond my mechanic skills. So I might be looking at some $$$$$ repairs
I might try to get a video later on.