Hi guys as title suggests idle is jumping about and when I have stopped sometimes the engine stalls! Driving at low rpm between 2000 and 3000 rpm the car judders so I have to drop it down a gear! I had a similar issue when my intake hose split! I have checked and there are no splits anywhere! Havnt had any new bits on my car and it has only just started happening! The only thing I have done different is put sainsbury petrol in!