So I had a nice running 190E, I was doing 120-130 on the highway and when I slowed down after a minute or two, my car was smoking. So I pulled over to the side of the expressway and turned the car off for a little. Now my car won't start by itself, I have to give it alot of gas to start and even then it won't stay running under 2000 rpm's so I have to be giving it gas constantly or it will stop running on me. Please any help!!!