Hi Piotr

I have scanned over your post mate so forgive me if I am repeating anything.

from your live data list at a quick glance... it looks like the pre cat lambda is reading lean and the ecu is working its nuts off to try and bring the Lambda readings up hence the +23% long
term fueltrims.

The post cat lambda appears to be measuring rich, next to no oxygen in the exhaust!!

This would say to me the pre cat lambda is not functioning correctly. (looking at one frame of data can be misleading though)

If you have got a 4 channel scope?
Measure....

Lambda signal 2v scale
lambda ground 2v scale
injector control volts 100v scale
Amp clamp on the heater circuit 60a clamp 20a mode 2a scale

Watch the lambda signal, heater current and injector operation during cold start to hot.

What happens?

Force the system rich and lean and watch the lambda reaction

May be worth blanking the EGRb off too at some point.

What is the injector duration cold and what does it go down to when the engine warms up?

If you would like me to host any waveforms for you...
Keep them under 25mb and email them to me mate.

jeardley213@gmail.com

Il have a proper look at your post tomoz and see how far off the mark I am LOL

James