MAF Scaling Table in grams/second
MAF Scaling Table in grams/second
Aug 10, 2009, 05:18 AM
#3
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Ok, nevermind. I had it with me. Weird.
Just as a heads up, I was having difficulty with this. I thought the addresses might even be incorrect, but I added the addresses tephra gave (in Hz) and changing either table changes the others, so it must be right. Just give it a try before tuning a crapload of different cars
Evo10base.xml
52680015.xml
Just as a heads up, I was having difficulty with this. I thought the addresses might even be incorrect, but I added the addresses tephra gave (in Hz) and changing either table changes the others, so it must be right. Just give it a try before tuning a crapload of different cars
Evo10base.xml
Code:
<scaling name="MAFVoltScaling" units="units" toexpr="x*5/1024" frexpr="x*1024/5" format="%.3f" min="0" max="5" inc="1" storagetype="uint16" endian="big"/>
<table name="MAF Compensation" category="Fuel" type="2D" scaling="AirFlow16">
<table name="X" type="X Axis" elements="40" scaling="MAFVoltScaling"/>
</table>
<table name="MAF Compensation #2" category="Fuel" type="2D" level="1" scaling="AirFlow16">
<table name="X" type="X Axis" elements="40" scaling="MAFVoltScaling"/>
</table>
<table name="MAF Compensation #3" category="Fuel" type="2D" level="1" scaling="AirFlow16">
<table name="X" type="X Axis" elements="50" scaling="MAFVoltScaling"/>
</table>
Code:
<table name="MAF Compensation" address="5753a">
<table name="X" address="615ea"/>
</table>
<table name="MAF Compensation #2" address="5758a">
<table name="X" address="6163a"/>
</table>
<table name="MAF Compensation #3" address="575da">
<table name="X" address="6168a"/>
</table>
Aug 10, 2009, 12:48 PM
#5
My question is: What section of the MAF scaling did you add the 10% to? The entire scale or from 40 to 100 g/s? 40-100 being the area that you will be in when cruising.
Aug 10, 2009, 12:52 PM
#6
Ok, nevermind. I had it with me. Weird.
Just as a heads up, I was having difficulty with this. I thought the addresses might even be incorrect, but I added the addresses tephra gave (in Hz) and changing either table changes the others, so it must be right. Just give it a try before tuning a crapload of different cars
Just as a heads up, I was having difficulty with this. I thought the addresses might even be incorrect, but I added the addresses tephra gave (in Hz) and changing either table changes the others, so it must be right. Just give it a try before tuning a crapload of different cars
Here is Tephra's
Add to 5268xxx.xml
<table name="MAF Scaling Part 1" address="5753a">
<table name="Volts" address="615ea"/>
</table>
<table name="MAF Scaling Part 2" address="57592">
<table name="Volts" address="61642"/>
</table>
<table name="MAF Scaling Part 3" address="575ea">
<table name="Volts" address="6169a"/>
</table>
And here is yours:
Add to 52680015.xml
<table name="MAF Compensation" address="5753a">
<table name="Volts" address="615ea"/>
</table>
<table name="MAF Compensation #2" address="5758a">
<table name="Volts" address="6163a"/>
</table>
<table name="MAF Compensation #3" address="575da">
<table name="Volts" address="6168a"/>
</table>
Last edited by nj1266; Aug 10, 2009 at 01:25 PM.
Aug 10, 2009, 02:09 PM
#7
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Yes, on the Evo X the trims drift positive with an intake. So you added 10% to the MAF scaling to bring the fuel trims down to about 0%, assuming that the AMS intake was causing your LTFT cruise to go positive by 10%.
My question is: What section of the MAF scaling did you add the 10% to? The entire scale or from 40 to 100 g/s? 40-100 being the area that you will be in when cruising.
My question is: What section of the MAF scaling did you add the 10% to? The entire scale or from 40 to 100 g/s? 40-100 being the area that you will be in when cruising.
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Aug 10, 2009, 02:44 PM
#8
From my understanding changing the g/s values is directly related to the changes in your trims. So if your LTFT cruise is +10, then you INCREASE the g/s values in the 40-100 range by 10%. If the LTFT cruise is -10%, the you DECREASE g/s values in the 40-100 range by 10%.
I do not know why they add more as the voltage increases. It does not make sense to me.
Aug 10, 2009, 02:48 PM
#9
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I know the addresses are different. That's what I was getting at.
However, changing one changes the other, so I don't know what the right way to do it is.
However, changing one changes the other, so I don't know what the right way to do it is.
Aug 10, 2009, 02:54 PM
#10
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Interesting that they do that.
From my understanding changing the g/s values is directly related to the changes in your trims. So if your LTFT cruise is +10, then you INCREASE the g/s values in the 40-100 range by 10%. If the LTFT cruise is -10%, the you DECREASE g/s values in the 40-100 range by 10%.
I do not know why they add more as the voltage increases. It does not make sense to me.
From my understanding changing the g/s values is directly related to the changes in your trims. So if your LTFT cruise is +10, then you INCREASE the g/s values in the 40-100 range by 10%. If the LTFT cruise is -10%, the you DECREASE g/s values in the 40-100 range by 10%.
I do not know why they add more as the voltage increases. It does not make sense to me.
Cobb has theirs set to taper upwards like I mentioned earlier.
I just went ahead and did +10% in the entire range, so far no side effects.
