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Author Topic: Help me find the source of torque intervention  (Read 9475 times)
SB_GLI
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« on: November 04, 2016, 06:08:14 AM »

I've been trying to track down this issue for a while now, and I finally got the time to add torque variables to my ecu file.

Attached logs are logs of a 3rd gear WOT pull and shortly after a part throttle 5th gear pull.

I can see timing intervention when mibas > mizsol

What would be the cause of this?
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SB_GLI
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« Reply #1 on: November 04, 2016, 06:11:01 AM »

Can't upload this image to nef for some reason... here's a link

https://drive.google.com/open?id=0B79F_wLN2HaIdmMwUGkzeTNFYzQ
« Last Edit: November 04, 2016, 07:15:26 AM by SB_GLI » Logged
vwaudiguy
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« Reply #2 on: November 04, 2016, 08:48:34 AM »

What would be the cause of this?

I'm no expert, but I'm going to say the tune.

 Grin
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SB_GLI
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« Reply #3 on: November 04, 2016, 09:18:54 AM »

I'm no expert, but I'm going to say the tune.

 Grin

But I have a 4 bar FPR.  ;P

It looks like there's something going on with dmar_w, though I can't make out what the logged values actually mean.. but there's certainly activity there.   I will work backwards through the DMAR function and log more variables related to that function to get to the bottom of this.
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vwaudiguy
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« Reply #4 on: November 04, 2016, 09:28:29 AM »

But I have a 4 bar FPR.  ;P

Yes!

I'll take a look later in the day if I get a moment.
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SB_GLI
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« Reply #5 on: November 04, 2016, 09:34:43 AM »

Okay, I lied about the 4 bar, lest anyone thinks that might be related to my problem.  Smiley
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nyet
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« Reply #6 on: November 04, 2016, 11:19:21 AM »

http://s4wiki.com/wiki/Tuning#Anti_judder
http://nefariousmotorsports.com/forum/index.php?topic=1905.msg18422#msg18422
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
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
SB_GLI
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« Reply #7 on: November 04, 2016, 03:17:40 PM »

FF'd TMAR and intervention is gone.   I'll have to mess with the rest of ARMD later.  I'm just going to enjoy this little victory for now.
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SB_GLI
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« Reply #8 on: November 05, 2016, 08:53:33 AM »

yay me.   Grin
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vwaudiguy
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« Reply #9 on: November 05, 2016, 12:25:52 PM »

Is this from "messing with ARMD" or your little cheat. Smiley
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SB_GLI
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« Reply #10 on: November 05, 2016, 01:32:54 PM »

still the cheat.  After a while driving it, I am trying to find a reason why I would want it back on.  part throttle and putting around seem smoother overall as well.
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nyet
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« Reply #11 on: November 05, 2016, 01:39:47 PM »

part throttle and putting around seem smoother overall as well.

I doubt it. I'd stick to only disabling it in first and for high torque request
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
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
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« Reply #12 on: November 05, 2016, 03:51:04 PM »

If you find that ARMD intervention is gone after FF'ing TMAR - do the next logical thing: revert it to stock, but FF the last row (column?) of KFDMDARO - to disable ARMD under WOT only. The effect should persist. Smiley
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nyet
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« Reply #13 on: November 05, 2016, 04:00:44 PM »

summary of my approach

http://nefariousmotorsports.com/forum/index.php?topic=1905.msg18422#msg18422
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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
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
SB_GLI
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« Reply #14 on: November 06, 2016, 08:57:12 AM »

I set TMAR back to original and modified the last row of KFDMDARO x4.  Also set KFDMDADP the same since the data in this table was similar (maybe I shouldn't have done this).

Didn't work.  Intervention is back. 

Seems I will have to tinker with this more to figure it out.  Undecided
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