u/BackgroundDay1208

Started out of nowhere the other day. Not sure what it is. But the vibration noise only occurs when I accelerate in drive. I have a check engine light for a P0420, though I've put cataclean and engine cleaner in it I just haven't reset the code yet. Also AC is blowing hot right now, I haven't put refrigerant in yet. Only known issues as of now. What could the sound be?

This was my last jump for my divison prelims and the other jumps were lackluster. From this video I don't believe it was a scratch and everyone thought it was clean besides the official. But Critique my form and tell me what I should improve on. 😁