Hi all, the dreaded engine management light has come on with the above fault code. Using an OBD11 I have found out it is senser 1 of the 4 fitted to the vehicle that needs to be replaced. Is this DIY job or garage only. Somebody told me it's in the turbo? Thought I would pick the brains of the knowledgeable in the forum to se if anyone else has has this experience. Bit gutted as it only has 50k on it.