I am installing new AFK c F con pro this weekend.
I have read installation manual for couple of times but I need help on setting AFK.

There is voltage setting for 02 lean dummy output and rich O2 dummy output.
Default on the manual is 19 and 95 for lean and rich.
There is also dummy output variance gain setting.

Can you guys tell me what that is?

Second question is on knock detection condition. On the manual it says
"Knock Level Initial Setting"

1. Set the knock input amp gain and headphones volume adjustment to the following initial set values:
knock input amp gain: 23
headphones volume adjustment: 10

2. Connect the headphones and maintain high engine RPM while in neutral. Adjust the volume **** until you can hear sound clearly. The knock sensor detects the vibration of the engine, therefore the volume will become louder as the engine RPM gets higher. Turn down the volume to avoid distortion at high revs.

3. If distortion or crackling can be heard even with the volume turned down, lower the knock input amp gain value.

4. While maintaining high engine RPM while in neutral, check to make sure there is no audible knocking.

5. Adjust the knock detection condition set value. In small increments, decrease the knock detection condition value until the knock level on display 3 does not read 0. Then increase the knock detection condition set value in small increments until the knock level value on display 3 continuously read 0.

* If the knock level stay 0 even the knock detection condition set value is 0, set the knock detection condtion set value to 0 and go to the procedure 6 below.

6. Using headphone, listen to make sure that knocking is not occuring while checking the display to make sure the knock level dispaly reads 0, even under load. If the knock level display does not read 0, increase the knock detection condition value to adjust.

7. If the knock level value is too hihg when knocking occurs, lower knock input amp gain value, and repat from step 4.


For step 3 and 5, do I adjust the setting in idle?
And the manual said "high RPM," and how hi should I go?

Thanks for reading long thread, and any help would be great