Hi there. The boost limits are for any gear - you are just more likely to overboost in higher gears.
Originally Posted by KornShaDoW097
The engine control unit (ECU) has 4 different means to respond to knock:
1. Do nothing - if it is a low load/RPM, it is likely false knock and the ECU will ignore it.
2. Drop the DAM - if conditions dictate that the DAM is to change (generally after extreme fine knock learning), it will in response to a knock event. Note: the DAM will be reset to an initial value upon map reflash, ECU reset or battery disconnect.
3. Drop the fine knock learning in the current load/RPM cell - if conditions dictate that fine knock learning is active (generally steady load, etc.), it will drop the current cell upon knock event.
4. Enable feedback knock correction - this is the default correction if #2 and #3 do not apply.
The "Knock Active" switch will change everytime you see #2-#4 responses but it very quickly goes back to "off" after the event which means you will miss it entirely a lot of times.
Whether a knock response is problematic or not depends on when (what load) and under what conditions (throttle change, etc.) it occurs. Corrections at low load or when mashing the throttle are generally normal.
Bill @ Cobb
Subaru ECU Specialist