Re: Smokin !
who did the remap?
a chuff of smoke whilst the turbo spools up is normal.
when its on boost, certainly from 2k up it should be really clean as long as its not overfuelling in the remap.
At high revs the turbo can't sustain the boost needed (the boost levels drop) so a bit of smoke at 4k upwards could be seen.
I think diesels run 20:1 air to fuel typically (maybe someone can confirm?) It is not good to have excess smoke, esp between 2k to 3k where it should be really clean.
If its smoking a bit throughout the rev band, then it may be worth getting the fuel map knocked down a little, it probably wouldn't make any odds to performance either.
That said, your egr could be sticking a little causing a similar effect?