Hello guys, this is my cold start log. https://drive.google.com/file/d/1u5vZWrvIKbTQ7istRCfFnbJEyWgovLO9/view?usp=sharing

Note, RPMs and my AFR start fluactuate about 125 sec. Where is my coolant temp about 45.75 C. AFR fluctuate between 0.9 and 1.1 so engine wants to deal with it by rising and decreasing fuel and rpms.

What can I look at?

Thanks for advice.

Hyee, so

1) Bad WG Hose !!! Hose looks good, but ONLY after 1.4bar hose start leaking !
2) I made PID regulation (WG regulation) for my K04. Or better.. I deleted old PID regulation and replaced it with RS4 regulation (like this http://nefariousmotorsports.com/forum/index.php?topic=12352.0title=). Now im spool around 3k rpm and boosting 1.2bar to redline.
3) Crap idle, bad idle fueling etc.. This was my mistake, because i bought injectors with bad pattern. SO i replaced them for OEM RS3 386cc injectors and everything is good.

Also i have brand new N75.

Where you have selfmade boost gauge ? Because original MAP is after IC.. Let me explain: I have also boost gauge just right after turbo, and when i have boost leaks turbo boost 1.5bar and MAP reads only 2100mbar