Mercedes C class W204 black smoke

[delltrotter]

I have this C class
Does somebody can check me flash,i suspect that chiptuning is worked and that is not good?
When you accelerate there is black smoke
I replace EGR,injectors check,turbine check,everything is ok,just have a black smoke
ECU is Delphi DCM3.2

Thanks

[StepOn Chiptuning]

On this ecu tuning area is in MPC, not in ext flash

[delltrotter]

mpc 332585

[mihaiservice]

Hi
mpc file are ok !

[delltrotter]

new mpc other ecu have different 332586
does this different can make problem like this?

[delltrotter]

when i disconnect mass air flow,car dont smoke
can somebody kill fault P2251

[mihaiservice]

check egr again or any broken hose from intake

[delltrotter]

thanks mihaiservice
egr is new,turbo is repaired ,air mass new
hose is checked,no broke
what can be a problem?
is there some idea more?
black smoke shows just on first acceleration,after that there is no smoke