Hi

Car came in smoking, checked system had oil in diesel so changed filter and injecters and tandem pump.still smoked replaced cylinder head.

No better checked egr all ok replaced throttle body as electrics full of oil, carried out software update. Turbo no play a small amount of oil present,new loom and glow plugs.
reading live data all injectors within smooth running window.

Car smells heavily of diesel when driving with _ even though no smoke at rear when hot but at 2,000 rpm car at light throttle holds back very slightly.drained and refilled diesel tank new fuel filter

Any ideas?