MetalForLive
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« on: July 29, 2018, 07:13:52 AM »
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Hi there, so I gathered now some Information about tuning a ECU and started to create my first "tune" for my S4 B5. But I have the Problem, that when I drive full throttle, my boost only rises up to ~1bar (14,5 Psi), but it should rise up to ~1,28 Bar (18,5 PSi). Can anybody tell me, what I forgot ? In the following Picture are my Settings:  Thanks in advance! |
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SB_GLI
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« Reply #1 on: July 29, 2018, 07:52:04 AM »
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Have you recorded any logs that you would like to share?
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MetalForLive
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« Reply #2 on: July 29, 2018, 08:21:02 AM »
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No sorry,
If I have to post logs, I can do this only in the next few days, not today.
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nyet
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« Reply #3 on: July 29, 2018, 08:33:11 AM »
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If you are unable to take logs, you're not going to be able to do anything.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease 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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MetalForLive
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« Reply #4 on: July 29, 2018, 08:40:54 AM »
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I can do logs, but not today cause I am not at home now...
What should I log, only boost or some other stuff, too?
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nyet
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« Reply #5 on: July 29, 2018, 08:43:47 AM »
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I can do logs, but not today cause I am not at home now...
What should I log, only boost or some other stuff, too?
If you are using ME7L (and you had better not be planning on posting VCDS logs) why would you log only boost when it can literally practially log everything you'll ever need at the same time? |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease 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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MetalForLive
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« Reply #6 on: August 14, 2018, 09:05:48 AM »
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So which variables are for interest in Me7 logger?
There are no variables like ldrxn.
Which are the variables for boost?
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nyet
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« Reply #7 on: August 14, 2018, 09:17:00 AM »
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« Last Edit: August 14, 2018, 09:18:40 AM by nyet »
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease 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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nyet
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« Reply #8 on: August 14, 2018, 09:20:31 AM »
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So which variables are for interest in Me7 logger?
There are no variables like ldrxn.
Which are the variables for boost?
Incidentally, all of this information is in the FR. You can see exactly what variables come from what table. Look at the FR, look for LDRXN. The variable that comes out of LDRXN is immediately obvious. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease 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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MetalForLive
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« Reply #9 on: August 14, 2018, 10:16:44 AM »
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Okay, I take a look in the Funktionsrahmen, then I will log boost.
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nyet
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« Reply #10 on: August 14, 2018, 11:00:45 AM »
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease 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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adam-
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« Reply #11 on: August 14, 2018, 01:57:20 PM »
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But I have the Problem, that when I drive full throttle, my boost only rises up to ~1bar (14,5 Psi), but it should rise up to ~1,28 Bar (18,5 PSi).
Why do you think it'll go to 18.5psi? |
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MetalForLive
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« Reply #12 on: August 15, 2018, 04:55:28 AM »
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Why do you think it'll go to 18.5psi?
Cause my LDRXN is on highest load 198 and from there it is slightly falling down. 198 LDRXN are 1,28Bar (18,5 PSI). But I never become this 18PSI even on higher loads, if I go full throttel on ~3000 RPM it rises up to ~1,1 bar (~16PSI). I should log this, then we see more, actually I read it only from my Boostgauge in the Car itself. |
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adam-
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« Reply #13 on: August 15, 2018, 04:59:15 AM »
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Cause my LDRXN is on highest load 198 and from there it is slightly falling down. 198 LDRXN are 1,28Bar (18,5 PSI).
But I never become this 18PSI even on higher loads, if I go full throttel on ~3000 RPM it rises up to ~1,1 bar (~16PSI).
I should log this, then we see more, actually I read it only from my Boostgauge in the Car itself.
Will it make that boost at that RPM? Did you read the bit in the Wiki where it says: Approximation That isn't to say it's not possible to get a (very) rough approximation of the boost you'll see based on your chosen LDRXN. requested boost=10*(LDRXN)+300mbar |
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adam-
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« Reply #14 on: August 15, 2018, 05:09:00 AM »
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Not to mention the fact you're complaining about missing 2.5psi, obviously don't have a calibrated boost gauge, obviously ignoring the fact the needle has a thickness and won't be 16 dead on or the fact the weather, the alignment of the sun and the moon and everything else dictates what you're requested actually is.
Also assuming you have absolutely no leaks whatsover.
I mean, logs would be amazing.
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