Vw transporter t5 2.5 tdi injectors

[nikte]

Hello
I have i problem with vw t5 2.5tdi when it's cold engine i hear really high tapping noise and no power from engine after engine get warm I hold at 4000 rpm for 10 second and the noise are gone then engine get full power
I get this reading on injectors but I'm not sure about nr 2 and nr 5
Can someone give me advice on this
Can be Crankshaft bearings?
Car have 310,000km

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[vitos]

injectors look fine.
hydraulic tappets leaking down then filling when cold???