hi. i am new to this. If any one can help I will greatly appreciate it. I own a 1998 E430 sport. I love the car, about two weeks ago a problem arose, no check engine light, but at time I have no trottle response, I am pressing the acc and nothing, and when it goes the response is very slow. when I shot the car down and restart it works fine, at times for a couple days and at times a couple hours. can anyone help thank in advance.