Thanks for looking at yet another one of my clutching at straws questions re punto maintenance , if I unplug the map sensor on my 1.2l petrol punto and the engine runs smooth (which it did) and then I plug it back in again and my rough idle returns does that more than likely mean that the map sensor need replacing or cleaning ? , I know it sounds obvious but could It also be hiding something else and unplugging the sensor hides the real problem ?