yeah, thats what i did, the person who had my car before me just seemed to work on the look of the car, and not the actual engine haha.
also i took it out on a motorway run today, i averaged 57 mph overall, (going up to 75 whenever i can) over 55 miles of motorway , and i got a max of 37.7mpg which is an improvement, but its still not quite what i should be getting.
the strange thing is that on the live mpg feed, when i was doing 75 i would actually average 42 or so mpg, but it just seemed to drop hugely (to about 25mpg) with the slightest adjustment of the pedal.