Getting knock recently
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This is a discussion on Getting knock recently within the Tuning: Electronic Engine Management forums, part of the Tech & Modifying & General Repairs category; I've been noticing that I'm getting quite a bit more knock lately. I constantly monitor Feedback knock, DAM, Fine Knock ...

  1. #1
    Registered User ZXNasty's Avatar
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    Getting knock recently

    I've been noticing that I'm getting quite a bit more knock lately.
    I constantly monitor Feedback knock, DAM, Fine Knock Learn, and A/F ratio

    I typically get some feedback during normal acceleration as I let off the gas to shift, just a normal. 1.40 value.
    Lately I've been noticing it happen more often. Not sure exactly what circumstances it's happening under since I can't stare at the AP all the time. The DAM and Fine Knock learn never change and are there respective normal values. AFR looks within normal ranges, as does boost (not over or underboosting) I attemped some logging today, but during none of the logs did I see any Knock so not worth submitting.
    Is this normal?

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  3. #2
    Registered User ZXNasty's Avatar
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    Really? No help at all?

  4. #3
    and the Funky Bunch Calvinball's Avatar
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    If you aren't getting it in your logs, it's still just that 1.4, and there is no learned knock correction, it's probably just incidental or false knock and you don't really need to worry about it too much.
    - Will
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  5. #4
    Master Baiter EJ257's Avatar
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    You're going to get some knock occasionally, but if you're unable to replicate it in a certain RPM/Load range (Ignition Timing tables are RPM vs Load), then you shouldn't be doing anything about it.
    2005 WRX STi (Mods | Virtual Dyno)

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  6. #5
    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by EJ257 View Post
    You're going to get some knock occasionally, but if you're unable to replicate it in a certain RPM/Load range (Ignition Timing tables are RPM vs Load), then you shouldn't be doing anything about it.
    Way to say it more technically than me. :P
    - Will
    First Mods: What to do and what not to do
    Current Car: 2014 Golf TDI
    Previous Cars:2012 WRB WRX Hatch, 2004 RSX-S, 1998 Grand Prix GTP
    "Isn't it amazing how smart you feel when you just aren't being stupid?"

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