Hi Folks, I have a 2006 1.7CDti astra and the engine management light is always on. When I am going up through the gears their is no power and can only get up to 3000 rpm then the car goes into limp mode, i lose power and I need to change gear, their is no power in it at all and I have the foot to the floor it can only get up to 80 mph at most. I've had it with mechanics and they say it is giving a code boost pressure sensor but can anyone who also has this problem shed any light on what i need to get done to get it fixed.