My engine and track light comes on. When I'm at a stop light my car vibrates.

What is your question?

It feels like it's going to cut off unless I put it in park. Also have a electric smell and white smoke coming out of the pipe in the back. They hooked it up a diagonstic to the engine to make sure everything was okay. They said it was fine. This is happening almost everyday. especially if I have to drive more then a mile.