Movano Year of construction 2003 2.5 DCI no longer starts.

Moin together, (prehistory) recently bought me cheaply an Opel Movano in good general condition, which was reasonably converted into a touring coach and where fresh (dental belt tensioning roller and belt drive etc) were exchanged. I got it only so cheap because the previous owner had to do a lot of it and gave it up in the current history and therefore sold it. It has taken leave of the bearing of the turbocharger and the engine thus has a lot of oil due to the intake g (charge air cooler, hoses, intake bridge and also combustion chamber) blowed. The previous owner then removed the turbocharger, overhauled it and had it installed again. Unfortunately, this did not solve the problem. The engine was still heavily squeezing and the gas was very poorly received. In this condition I bought the Movano. (Current problem) I built the entire intake apart and cleaned it. Because there was a lot of oil from the turbocharger damage in the intake. The diesel engine started a bit bulky but then it went on. He took the gas very well and ran quietly in the stand. I then turned off the engine, because it still produced a lot of smoke and the Movano smoked my whole screwdriver hall. A little later (didn’t change anything) I wanted to start the engine again (engine was still warm) and it didn’t start at all. I didn’t clean it up. It tries to get me starter spray to start, but except to ignite the starter spray, nothing happened. So the engine gets air, but apparently no fuel. Can the injectors be out of order, or has the fuel filter leaked or the fuel pump doesn’t work anymore. But absolutely didn’t know how this can be related to the test run. Unfortunately, I don’t have an idea where to start right now. Thanks to everyone who thinks a few things for me. cht and maybe also has a constructive idea!