Hi everybody,
finally I diagnosed what is the problem.
Code P1710 appeared. Then I googled it and found out that many people are experiencing the same issue. In Japan there was also a free replacement for it.
The cheapest way to repair it is buying turbine speed sensor 2 ($100) which is located on valve body and have it replaced. The more expensive one is having replaced valve body. In every authorised dealership, that is what is going to happen...
I found one sensor on ebay, so I am waiting for it to arrive, then I am going to change it.
I will let you know what is the result.
It's crazy that it took almost 2 years to show the code...