When I just start the car (cold engine), the car seems to be working incorrectly, shaking, as if it were nozzles?
But the car after 4-5 minutes of work goes quite normally, even pulls well, no driving problems.
What can it be?
Maybe diesel injectors? PCV valve?
By the way, it's like I hear a little alternator.

I enclose a video of the operation of the engine.

Any advice how to resolve this problem?

Thanks in advance

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