economy
Further to my earlier post, I have just finished 5 or so hours in the freezing cold going over this motor as per the advice recieved. The one and only sensor I can find was removed and cleaned, all hoses were removed and inspected, cleaned and refitted...both those attached to the intercooler were dry and clean inside with no visible splits or damage anywhere. Minor splits were found on each end of the small hose going from the crankcase breather to the air intake hose so I taped and clamped these until I can get to a garage and buy a new hose...everyone closed for Xmas!!
Put it all back together, warmed her up and went for a 30 k test drive...consumption back to 10 l/100..slightly better, but not a lot. Will have to take it in early for the next service to get new filters, oil and the new serpentine belt. Hope this helps.
Anyway, I have followed your valued advice and things have improved somewhat, so I thank you for your trouble.
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