Hello Guys,

From the beginning when I made an convertion from narrowband to wideband I have some problems with the ignition (I suppose it's not normal behavior).

It pulls timming at low load and I can't be sure what causes it - it looks randomly a bit for me.
Even when the car is idling and I softly but periodically press the gas pedal - You can see it at the end of log.

I was working on several different bins and effect was similar, now I have flashed stock 4B0 906 018DC just with deleted sai, second o2, vvt and n249 (waiting for new valve so i it's temporary) and corrected for bigger injectors.

Engine is rebuilded, everything is stock except of DP and bigger injectors.
I changed knock sensors to new one and retorqued them to 20nm.
I tried gasoline from different station as well but i though that stock flash should be more tolerant..

So, what can cause this behavior?

-IAT
-FPR
-Gasoline Quality
-Bad knocksensors or wiring
-Mechanical problem with engine?
-Injectors not corrected properly?

I need some advice because i don't know what should i look next