REF Limp Mode, Have had the typical problem when accelerating in 4th under load, Had it looked at a few times, codes read etc, garage noticed yesterday that a vacumn hose ???? (whats this, from where to where -any idea??) had be re-routed wrongly when the turbo was changed and has worn thin rubbing on the drive shaft, possibly closing over under load causing limp mode!! Anyone got any thoughts on this as being viable? Any one explain this hose or have a pic of it???