My average fuel consumption reads a eye watering 33.2mpg over 388 miles which was a full tank.... It's a 1.9 130PD A4 B6
I've had the EGR valve off and cleaned that out and surrounding pipework but it's still shocking... On a run I can barely hit 42mpg on the onboard computer.
Fault codes are 0 there is none...
Now what!? Im stuck as to what to do next.