I borrowed a reader but within no code book, but I read on the internet this code is "turbo charger boost sensor A circuit malfunction", anybody know what this means ? It needs a new sensor ? Anybody had this code and what part was needed to fix ? Came on while driving on motorway, but after 3 clean starts the engine fault light has gone off and not come back on again in 3 days (non motorway). Thx David