ECM-6806 and strange readout values

[Calcyfer]

So since some time I've got DTC ECM-6806 Turbocharger (TC) control system flow fault - Flow too low

I've changed the MAF, that didn't fix it.
So I'm guessing the issue is either the ETM or air leakage.

Cleaned the ETM, but haven't been able to do a smoke test yet.

I did notice something strange when I looked at the values read when the DTC occurred :

http://i.imgur.com/tTMM5uI.png

Are those fuel trim values normal?

Thanks for any help.

[Calcyfer]

No one has any idea?

[Forkster]

Have you tried a vacuum leak test?

[Calcyfer]

Not yet, I'll put that on top of my to do list and report back.

Thanks for the advice.

[Antherzoll]

The only figures you should be looking at are bank 1 values for LTFT and STFT which look good by the way so I don't think this is a boost leak. How long after a reset were these values taken?

I'm unsure of what turbo pressure % is relating to, but low turbo output could be caused by a boost leak, faulty TCV, a faulty or torn CBV, faulty MAP(not without other codes), or a damaged turbo(not likely). Make sure all the vacuum hoses are in good shape, make sure the CBV has a hose connected to it and that it can hold vacuum (apply suction to it), and if the TCV is old I would replace it.

By the way, at 4000rpm with 533.6kg/h air flow the engine is producing roughly 183bhp.