Hello everyone. I really need the help of the community with my problem. Have a Passat b5 1.8t  4B0906018DH ecu.
Chinese Jrone K04-15, turbo.
injectors bex 0280156061 — 06A 906 031 BA.
The main problem is ignition retards under load, and low ignition timing.
I am attaching the latest version of the firmware to the post, .xdf and a log file made today.
P.S. I know that the duty cycle of injectors after 5000 is more than 90%, but I'm more concerned about retards over the entire RPM range.