Throttle Lag On DBW

[bronsin]

Originally Posted by Yaris Hilton

Whenever you're coasting with the engine turning much above idle speed, the fuel is completely cut off for zero emissions and zero fuel consumption.

If that were true the engine would stop running. The engine has to have fuel to idle. But what you say is interesting. I had a BMW F650 2001 which, at times, would not idle when you came to stop at a light. It would start and run if you gave it more throttle while cranking, but it would not idle if you relaxed the throttle to the idle position. Turn the ignition off and on, start the engine and poof, it ran flawlessly. Until the next time. I could not fix it and neither could BMW. (their main effort was to blame me for not pulling the clutch in in time)
But maybe it had something similiar to what you describe. Thats the problem with all this gee whiz neato stuff. When it breaks its pretty hard (if not impossible) to fix. Some say they dont notice this problem so maybe theirs is working properly.