dear friends,

I'd like to ask or to agree my theory.
It is stock setup.
no chimes or DTC(somethime on cold oil 16395 -  Bank 1: Camshaft A (Intake): Retard Setpoint not Reached (Over-Advanced but no light onli DTC apears in memory))
on cold weather cca 10gradC after normal startup with  cca 1500rpm, then normal idle after few seconds, and then after cca 30-60s of first driving it looks like no fuel..... and after cca 15s everything works.
on hot engine full pedal it looks like the power becomes in pulses with 1-2s period.
on hot engine and low load(25) and 2000-2300rpm there are also pulses.

first I change MAF to new one and now I think so problem is in O2(narrow) before cat even if there is no O2 DTC.

could someone help me with this?

here I post some log