L.TRIM always at -100 / Knock count question

Civic 2016+ 1.5 Turbo
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turboroe
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L.TRIM always at -100 / Knock count question

Post by turboroe »

Hi, I have the 2019 1.5T civic touring (brazil version) and my logs and reading have always shown L.TRIM as -100... is this a bug or something? The -100 is in the logs and the headunit app. S.Trim works as should and indicates values usually below 10%.
Is there anyway I can get tu actually see what the L.TRIM value is?

Also, I am using +3 basemap with regular gas, and my commute is normally a 30min 18km trip. Every day I check the knock count and usually get around 10 to 15 knocks at the end of the trip. K. Control is normally around 54% and sometimes goes up to 60% when I do some WOT´s. I´ve never seen it below 53%. Should I be concerned about this and perhaps fine tune it to avoid these knocks, or is this a normal behaviour ?
With stock map the same trip would give me 0 knock count.

And just another noob question, where can I see the actual turbo pressure in the datalogs?


Thanks!

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Spunkster
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Re: L.TRIM always at -100 / Knock count question

Post by Spunkster »

Post your calibration as well as a datalog showing the issue.

turboroe
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Re: L.TRIM always at -100 / Knock count question

Post by turboroe »

I have attached my datalog for my today´s trip. I didn´t do any WOT´s but had some knocks, although the count was not as high as usual.
Attachments
basemap +3psi.fpcal
(14.79 KiB) Downloaded 26 times
basemap +3psi ida a viamao 2.fpdl
(5.38 MiB) Downloaded 30 times

turboroe
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Re: L.TRIM always at -100 / Knock count question

Post by turboroe »

And here another datalog from the same commute. This was 1 working day before the log above (and I had just reflashed my calibration before this trip).
I did some WOTs on this trip, and knock count was much higher.
Attachments
basemap +3psi ida a viamao.fpdl
(7.76 MiB) Downloaded 27 times

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Spunkster
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Re: L.TRIM always at -100 / Knock count question

Post by Spunkster »

Our software engineer is looing into this.

turboroe
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Re: L.TRIM always at -100 / Knock count question

Post by turboroe »

Ok thank you in advance.
And regarding the knock question, should I be worried or is it OK to run like this, with avg. 10 knock count in my commute?

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Spunkster
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Re: L.TRIM always at -100 / Knock count question

Post by Spunkster »

Don't worry so much about the knock count. Look instead at the knock level and try to keep the knock level down.

turboroe
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Re: L.TRIM always at -100 / Knock count question

Post by turboroe »

You mean the k control? What do you consider a low value? Mine us usually in the range of 54 to 68%

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Spunkster
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Re: L.TRIM always at -100 / Knock count question

Post by Spunkster »

That sounds pretty reasonable.

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Hondata
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Re: L.TRIM always at -100 / Knock count question

Post by Hondata »

On this ECU the long term trim is not used so it will always show -100%. It is nothing to worry about.
Hondata

turboroe
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Re: L.TRIM always at -100 / Knock count question

Post by turboroe »

Ok thank you for the information. Does my engine have any long term adjustment? Or does it rely only on s trim?


Thanks

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Hondata
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Re: L.TRIM always at -100 / Knock count question

Post by Hondata »

Hondata wrote:
Wed Sep 18, 2019 3:42 pm
On this ECU the long term trim is not used
Hondata

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