Friend changed the plugs tonight in his 2 liter Hyundai. They were iridium, and 3 of the 4 had the insulation and electrode missing. Gap nearly 1/4”. No idea how it even ran.Never seen this before. This thing is melting the number 1 coil. Literally melting it and it was new out of the box. A few more test to confirm but I'm leaning towards the ECU/ECM having a short in it. If so $250.oo ecm rebuild should fix it.
2013 Hyundai Veloster 1.6l non turbo. Nice looking car but it has recalls for catching fire. I see why lol....
spliff n splinter time