I looked at the blanking plate but I heard the Police are checking them in the east. We are on our way to Queensland from WA. That's why I asked the guys to close the EGR with the computer. Maybe the valve to jammed?
ECU remap, going into fail safe when under full power towing 6.3 m 5th wheeler, excessive fuel consumption 23.9 litres per hundred km towing in hilly country. About 20 on flatter terrain.
I have just had a remap on my 2011 D40. Very noticeable difference in lower gears and moderate difference...