NefMoto > Noob Zone > Noob Questions (Moderator: turboat) > LDRXN - Strange values
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Author Topic: LDRXN - Strange values  (Read 1234 times)
Renegade187
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« on: August 10, 2023, 03:49:46 AM »
Hi All,
I am trying to interpret this table but the values look very strange.  My ecu is a ME7.6.2 - Opel.
For the x axis which is the RPM the following shows:  54.75, 182.500, 7460, 15677.500, 12287, 54.750, 16188.500, 10689......
On the z axis the values where supposed to % but show as follows corresponding to the x axis values above:  12.0003, 0.0000, 12.0003, 0.0469, 12.0471, 0.0000

offset on x axis is 0.25*eprom
offset on z axis is 0.023438*eprom

Is the offset correct - please help
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aef
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« Reply #1 on: August 10, 2023, 05:23:14 AM »
No way to help you because you didnt upload a file and adress of where you think ldrxn is
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Renegade187
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« Reply #2 on: August 10, 2023, 06:11:58 AM »
apologies: the file as now been added

The start address shows as: A6342 from the hexdumpcursor

I also read somewhere that for the 7.6.2, the LDRXN is replaced by the KFRLSNT @ address - ADCC4

TIA
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fknbrkn
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mk4 1.8T AUM
« Reply #3 on: August 10, 2023, 07:58:59 AM »
Its obviously wrong defined / non exist
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Silencesilja
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« Reply #4 on: August 10, 2023, 11:14:06 AM »
You read that right, there is no LDRXN in that SW

KFRLSNT - ADCC4 16bit LoHi ( 16x8 )  factor=0.023438*Eprom
X-Axis(U/min) - ADCA4 16bit LoHi ( 1x16 )  factor=0.25*Eprom
Y-Axis(Grad C) - ADC9C 8bit ( 1*8 )  factor=0.75*Eprom-48
« Last Edit: August 10, 2023, 11:16:41 AM by Silencesilja » Logged
Renegade187
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« Reply #5 on: August 10, 2023, 12:04:26 PM »
Quote from: Silencesilja on August 10, 2023, 11:14:06 AM
You read that right, there is no LDRXN in that SW

KFRLSNT - ADCC4 16bit LoHi ( 16x8 )  factor=0.023438*Eprom
X-Axis(U/min) - ADCA4 16bit LoHi ( 1x16 )  factor=0.25*Eprom
Y-Axis(Grad C) - ADC9C 8bit ( 1*8 )  factor=0.75*Eprom-48

Thank you very much

One more question,  the TVUB on this software is also very strange.   It was supposed to be voltage and injector ms.  I'm seeing degrees Celsius on the one axis and ms on the z axis.
This is at address A3FE2.  the graph title says intake air temp / ms.
Is this correct?  Does this sw incorporate injection time vs voltage?
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Silencesilja
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« Reply #6 on: August 10, 2023, 12:53:24 PM »
Sure it has voltage correction..
TVUB - A3F22 16bit LoHi ( 5x1 ) factor=0.002667*Eprom
X-Axis - A3F1D 8bit factor=0.0681*Eprom
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