My t-Sport has developed a strange power problem. It normally occurs if your on boost and you let the revs dip below the boost level and then you try and accelerate hard the power just cuts out completely for a second. For example yesterday going around a round about in 2nd / 3rd, came off the acelerator, at the start of the slip road onto the motorway put my footdown and the cars power went completly for a second and then came straight back in at full. It feels like when you slip the clutch at lights by accident you get the jolting sensation. Anyone come across / resolved a similar problem ?