NefMoto > Technical > Tuning > n75 control help.
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Author Topic: n75 control help.  (Read 18519 times)
judeisnotobscure
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« Reply #15 on: March 21, 2011, 11:37:04 AM »
it could be dropping due to the negative deviation code, but i would think that requested load would drop as well.
i've adjusted ldrxn to see if that could be the issue... i'll post back after testing.
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judeisnotobscure
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« Reply #16 on: March 21, 2011, 01:16:46 PM »
I significantly lowered ldrxn starting at 5800 rpms... that map is not the cause of this issue. Any other ideas?
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silentbob
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« Reply #17 on: March 21, 2011, 01:40:52 PM »
Quote from: judeisnotobscure on March 21, 2011, 01:16:46 PM
I significantly lowered ldrxn starting at 5800 rpms... that map is not the cause of this issue. Any other ideas?

Do you get diagnostic codes? Does the actual boost ever meet the requested?
Post some more logs.
With that requested boost in the upper rpms you will kill the k03s pretty quick due to overspinning them.

Edit: Ok I've just read that you get negative deviation. That's the reason because you never reach the requested boost. The Ecu will ignore that for the time calibrated in TDLDRA but then cuts the DC to the N75.
« Last Edit: March 21, 2011, 01:49:44 PM by silentbob » Logged
judeisnotobscure
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« Reply #18 on: March 21, 2011, 02:02:32 PM »
this explains the n75 cut then... I will try another ldrxn change... i've done a few changes to that map with no success. I'll see what i can cook up.
thanks.
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silentbob
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« Reply #19 on: March 21, 2011, 02:12:58 PM »
Try to keep the difference between requested and actual boost below 100 hPa because that's the threshold (EDLDRP) for the diagnoses.
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judeisnotobscure
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« Reply #20 on: March 21, 2011, 02:25:58 PM »
ok thank you... i wasn't sure which map controled this function. i went through the logs, modified ldrxn again back to sane levels and sent the file out for testing. 
thanks for the reality check.... kind of along the lines of what tony was getting at.
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Rick
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« Reply #21 on: March 21, 2011, 03:06:32 PM »
as above, reduce max load.  Also consider bumping up aiflow limit of MAF but you are probably below it on KO3's.

Rick
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judeisnotobscure
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« Reply #22 on: March 21, 2011, 03:55:58 PM »
Thank you, load is being reduced... I will look at the compressor map and determine max flow.
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judeisnotobscure
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« Reply #23 on: March 21, 2011, 08:33:48 PM »
issue fixed... thanks guys
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damos07
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« Reply #24 on: December 30, 2011, 06:59:20 AM »
can you tell what was solution?
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judeisnotobscure
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« Reply #25 on: January 13, 2012, 03:12:11 AM »
As everyone pointed out i was requesting too much load.
i also loosened up edlrp a bit.
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rob.mwpropane
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« Reply #26 on: January 14, 2012, 12:56:41 PM »
Quote from: judeisnotobscure on January 13, 2012, 03:12:11 AM
As everyone pointed out i was requesting too much load.
i also loosened up edlrp a bit.

You mean EDLDRP?

Edit: Nevermind, it was written like that a few posts up^^^^
« Last Edit: January 14, 2012, 01:14:19 PM by rob.mwpropane » Logged
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