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Author Topic: help with KNOCK  (Read 40294 times)
KasperH
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« Reply #15 on: May 22, 2018, 05:53:37 PM »

Just had a glance at your logs.

You're massively overboosting @ 3000rpm.
So much so you're actually beyond the MAP limits,
who knows what boost peaks at.
And funny enough, your 6° timing pull starts at around there.

Get boost sorted first, then worry about knock limitations.

It's my own fault. Should have looked at logs first,
but not optimal on my phone with only Google sheets.
« Last Edit: May 22, 2018, 05:55:18 PM by KasperH » Logged
tao13
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« Reply #16 on: May 23, 2018, 12:59:34 AM »

Yes and thanks for this reaseon i asked about my overboost because there is the problem. I tried to reduce duty cycle at the last line between 2000 and 3500 rpm but the overboost it the same. Any ideea if you look at my printscreen maps where is the problem and why it make oveeboost (this is clear produce knock/retard). Thanks again for yours advices
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nyet
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« Reply #17 on: May 23, 2018, 01:22:11 AM »

I tried to reduce duty cycle

In IMX? how did you determine what to do if you didn't even log the PID variables?
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tao13
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« Reply #18 on: May 23, 2018, 03:43:14 AM »

Thanks nyet but there i modified few days ago but without result.
My overboost exist and are the same 1.5 bar.
Please see modifications in attached picture for n75

Today with bkr7e sparks and 99 ron fuel (retard is -6) the result is worst than pfr6k sparks and 95 ron fuel ( retard maximum -3)


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jjuuaannk
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« Reply #19 on: May 23, 2018, 05:17:10 AM »

what gap did you set the spark plugs?
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Adrianb
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« Reply #20 on: May 23, 2018, 08:40:26 AM »

I think this is not about sparks / coils...
I have similar problem on AGU me 3.8. Timing retardation after 4700rpm. I´ve replaced coils (R8 red) and sparks and no change... Replaced knock sensor not helped too.

so ...
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nyet
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« Reply #21 on: May 23, 2018, 08:43:28 AM »

Log the PID variables. Pull more IMX.
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tao13
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« Reply #22 on: May 23, 2018, 12:32:33 PM »

New kfldimx adjustment on last line like in attached picture and see the logg attachement too
Overboost are the same 1.55 bar but no retard
Do you think make some changes in KFLDRL for escape the big overboost because in IMX i am to the limit
I'll make a new log tommorow with the same setup and will see if NO retard will keeping or was a coincidence.

Many thanks again to all.







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KasperH
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« Reply #23 on: May 23, 2018, 01:18:51 PM »

Please make some logs of boost PID, it'll make everything less painful.

But try and adding a little D.
« Last Edit: May 23, 2018, 11:34:34 PM by KasperH » Logged
nyet
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« Reply #24 on: May 24, 2018, 12:05:39 AM »

Your IMX looks like crap. You have a gigantic hump in it.

Your columns should all be monotonically increasing.

Also, why are you not logging I and i max
« Last Edit: May 24, 2018, 12:19:29 AM by nyet » Logged

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tao13
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« Reply #25 on: May 24, 2018, 12:27:39 AM »

new log again with retard , added PID variables
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tao13
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« Reply #26 on: May 24, 2018, 12:41:54 AM »

new log again with retard , added PID variables

fogot to tell i don't have stock wastegate for k04 , i have a kinugawa with 0.8 spring and if it is connected directly to manifold the car make maximum 0.65 bar

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nyet
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« Reply #27 on: May 24, 2018, 12:53:57 AM »

Did you get rid of the lump or not.
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nyet
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« Reply #28 on: May 24, 2018, 12:56:01 AM »

Your i limit should be around 60ish (post DRL, you may have to back calculate).

Also MAKE YOUR DAMN COLUMNS MONOTONICALLY INCREASING
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ME7.1 tuning guide
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Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
tao13
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« Reply #29 on: May 24, 2018, 01:04:57 AM »

Thanks nyet!
I found something - i think my overboost is created from KFDLULS because is setted 1125 to all points
What do you think?
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