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Old 02-13-2018, 08:17 PM   #1
hokie nation
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Default Fine Knock Learning

I have gained so much knowledge reading the other posts on this site and also the Cobb website. I have a quick question about the Fine Knock Learning.

On the Cobb website, it states: Fine Knock Learning of -2.8 or worse during wide open throttle (WOT) run is when an issue should be addressed. https://cobbtuning.zendesk.com/hc/en-us/articles/201230934-General-Guidelines-for-Monitoring-Knock-on-a-Subaru-non-DIT-Cars-

Does it have to be through the entire time of the WOT or just one time during the WOT?

I am noticing a -2.8 when I mash the throttle and it goes down to -1.4 then 0 as I am accelerating. I donít have any logs for you guys to see as I am just trying to get a general baseline on when exactly should I be worrying about the Fine Knock Learn parameter.
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Old 02-15-2018, 12:18 AM   #2
subarulz!
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Will it still do it if you hit the throttle softer? If you are running an OTS map from them, take logs and send then to Cobb. They are technically you tuner and they will see if something is wrong.
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Old 02-15-2018, 12:59 AM   #3
anarekist
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From what I remember reading online is that the other numbers are part of a cascade effect. So it's not continuously happening.
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Old 02-15-2018, 01:09 AM   #4
rubmetoasty
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what they are getting at is dont freak out if you have some registered 'knock' at low load or tip in, which it sounds like you are getting.

if you are pulling timing at high engine load or it continues to do it as you go toward redline, then you need to investigate.
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Old 02-16-2018, 10:07 PM   #5
rzmwrx
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I randomly get -1.4 or -2.8 feedback knock over bumps and stuff. Still have not got one correction in DAM or knock knock learning since I put on my accessport

Last edited by rzmwrx; 02-17-2018 at 11:52 AM.
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Old 02-18-2018, 03:57 PM   #6
hokie nation
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Thank you to everyone who took the time to reply. As I continued to drive more, the fine knock learning started to decrease by .035. After reading the previous posts and other forums, I think it is perfectly fine to see feedback knock and fine knock learning while mashing the throttle during WOT. My DAM has always been at 1 and never changed since I had the accessport so I think there is nothing to worry about. Thanks again guys for all the help!
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Old 03-20-2018, 01:49 PM   #7
Mkodada
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Quote:
Originally Posted by hokie nation View Post
Thank you to everyone who took the time to reply. As I continued to drive more, the fine knock learning started to decrease by .035. After reading the previous posts and other forums, I think it is perfectly fine to see feedback knock and fine knock learning while mashing the throttle during WOT. My DAM has always been at 1 and never changed since I had the accessport so I think there is nothing to worry about. Thanks again guys for all the help!
I agree i just got my AP and running the stage 1 93 oct. I have gotten the -.35 fine knock learn during tip in very light throttle and very light load. I also got a very odd -11.95 feedback knock when taking off normally from a stop sign. My clutch work may have been a little clunky and this may have cause this but thinking its false knock. DAM has never moved from 1.
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