Smoking And Poor Mpg 2.0 Diesel Zetec

[Ford runner (1988)]

hi to all im a new member and thought i would join hear as im after a bit of advice and information. I have recently brought a 2003 mondeo zetec s diesel but have noticed poor mpg and also that it smokes when booting it shall we say.

First thing i have done is checked it through diagnostics no problems found i have also checked the pipe from egr no splits or tears i have even put on a new egr still have smoke. The car it self pulls like a dream with no hesitation could of been remapped but poorly any other suggestions would be very much appreciated regards adam i put £25 and got about 120 miles