Hello! These were my problems:
Rough idle/bad throttle response. But the engine starts normal, cold and hot. The rough idle starts after warming up approx 10 minutes. I think idle in open loop is ok. Then the engine went to closed loop. After approx 2 minutes the rough idle began. Then the exhaust got a poping sound, like very small explosions (I don't know a good english expression)
I used a scanning software. No codes, sensor readings are normal (for me).

Last weekend I disconnected the O2 sensors, IAC but without any reaction to idling. This saturday I cleaned the TB and installed new:
IAC, IC module, coil
I ran the motor for over half an hour and no problem with idling or throttle response. And 3 times more with the warm engine. I wonder why everything seemed to be ok during cold start. I think it's the IAC. Next weekend I will install the old IC module and coil for testing. If somebody wants this info I will write my results to this thread.
I hope I solved my problem and perhaps someone other could use my information.