my corsa chugs at times as if its lost power but then just starts driving again, the engine managment light also starts flashing now and then. so i phoned vaxhaull up, they say the car needs a computer pluged into it to find out the problem but it will cost me 70 quid. Just checked the oil today and it was badly in need of a re-fill so cars runing fine now,but the engine managment light still flashes after 5-10 mins. plus the oil light never came on it was just the engine management light, anyone else had any problems like this?