Hi w
My 2004 disco td5 has stared to run uneven like it is running out of fuel, when pushing down on the accelerator black smoke comes out, can anyone help ? a few years ago took out the EGA system and put in a bigger inter cooler and had it rechipped been OK up to now
 
First do a Nanocom diagnosis.
Could be anything but possibly injectors or harness issues, have you checked ?
 

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