[slava]

I made another test. I pluged front o2 sensor to channel #1 and and then #2. Run the car both time on idle for 5 min, and both showed 13.5 +/- 0.2 which tells me the controller and sensors ok. I'll plug the o2 sensors back and check the AFR again.
What exactly Idel vs Target does in IDLE menu? If 'Idle Learned Value' is 0 then my idle is cycling. then I pull the values UP and the 'Idle Learned Value' is -2 to -4 Idle stabilizes.