Sorry mr popey, I totally missed your comment. The main problem I have found so far is a loss of power when putting my foot down, the car goes into limp mode. I've researched this and to be honest it's a bit of a mine field. I have looked up all the tell tale signs, smoke from exhaus and turbo not kicking in and I've found myself at the EGR valve. I'm no mechanic but I think due to it being cheap to do and pretty easy, I'm going to remove the EGR valve and give it a good clean, I'm not sure if this is going to be pointless though as I will be blanking it straight away. If you have any knowledge about this I would be very grateful to hear it or even your opinion on blanking the EGR valve.