Over the last few weeks my car has been idling very roughly and hunting. In fact if I didnt keep my foot on the brake the car would surge forward on its own.

Happens worse mainly when cold first start of the day and less at other times.

Dealer had the car on the "machine" and it reported a possible high speed bus problem on the DDE eg. loose connection, module etc. etc.

Anyone else come across this problem and know of the fix that worked?

Streak