What should my feedback Knock be?

Feedback knock correction or Fine knock learning -4.2 or worse at low loads (i.e. cruise/low throttle situations).

How much knock is normal?

Typically 0.5 degrees is a good starting point. If you are using multiple knock sensor on different banks of the engine (for example in a V6 or V8 application) then there are individual long term knock trim maps for each bank of the engine.

Is negative knock bad?

Negative knock isnt really bad. If you were seeing really high positive knock that wouldnt be good. I see a lot of negative knock with my MPT tunes to. I think its just the way they have the tune set up.

Is knock bad?

What is Knock? Also known as engine ping or detonation, an engine knock is a sound and reaction that occurs when there is a second unplanned ignition or explosion within a cylinder that is separate from the regular controlled ignition from a spark plug. In other words, knock is bad news for your engine.

What is dam on Cobb Accessport?

DAM represents a global adjustment to ignition timing. If this value is anything less than ideal, it’s a quick indicator something isn’t right (unless immediately following an ECU reset/reflash).

Why do Subarus knock?

Detonation Knock Most commonly, this is caused by using fuel with an insufficient octane rating for your car. If your vehicle requires premium fuel (such as a turbocharged Subaru WRX), this kind of knock can be caused by accidentally filling up the vehicle with regular grade fuel.

How do you control knock?

Lead dust added to the intake charge will also reduce knock with various hydrocarbon fuels. Manganese compounds are also used to reduce knock with petrol fuel. Knock is less common in cold climates.

What is dam in a car?

Generally, Dynamic Advance Multiplier (DAM), Feedback Knock Correction, and Fine Knock Learning are relevant when monitoring knock. DAM represents a global adjustment to ignition timing. Feedback Knock Correction is a real-time timing correction the ECU makes based on a perceived noise.

What is Knockr deg?

So just for future reference -# knock retard means that timing is being added in over the base timing maps which is good, 0 means that there is no condition for extra performance or that the engine is operating in lean cruise, and +# knock retard means that the ECU is actively pulling timing which is not good.

What should my af learning 1 be at?

1) The AF Learning 1 values should be +-8\%. Anything over this indicates there is an issue that needs to be fixed. 2) The AF Learning 1 values can vary greatly, however, you only need to worry if its NOT 0 at WOT.

What causes knock WRX?

The Octane Level of Your Fuel Is Too Low Premature combustion causes a knocking sound. While most Subaru models only require 87-octane fuel, some models like the WRX and the BRZ require higher-octane fuel. If you notice this kind of knocking, buying an octane booster might help the issue.

What are the basic controls for Knock-Knock?

Basic controls are: arrow key up to climb, arrow key down to climb down, left and right are moving keys, space key to turn on or turn off lights, and hold space to open doors. Full images of the Steam profile backgrounds for Knock-Knock These are only available on Steam, and are used to create badges.

What is feedback knock correction and how does it work?

Feedback Knock Correction is a real-time timing correction the ECU makes based on a perceived noise. The ECU immediately pulls timing (the amount of the Feedback Knock Correction value) and adds timing back (value rises to 0) assuming no further noise is detected.

What is fine knock learning and how is it applied?

Fine Knock Learning is learned (and thus applied) for specific ranges defined by load and RPM; once a correction value has been learned iinto a particular range, it will be applied whenever the engine is operated within that range.

https://www.youtube.com/watch?v=BLBeDY5oIA8