Hey everyone I’m trying to figure out what is wrong with my car. It only has 11k miles no tune or anything stock. At cold starts it sort of vibrates as the rpm would lower it would have these occasional shudders or sputters if I could describe what it does and sometimes even hard enough to shake...
Did you end up finding what it is ? I see that when I start mine it’ll have these vibrations and sputter once idle drops sometimes it will do it strong enough to shake the entire car and make me think it wants to turn off. I replaced sparks and the fuel tank breather valve still have it