NefMoto

Technical => Data Logging => Topic started by: itemonsale on July 07, 2013, 07:44:40 PM



Title: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 07, 2013, 07:44:40 PM
I have a ME 7.5 B6 A4, I used AugB logger to do some real time logging on the lambda read out and O2Voltagewideband , I compared the two column as shown in the pictures, the values in voltage  at 1.7Voltage while A/F reading is at 1.1?  according to the lamda vs voltage, 1.7V should be 0.78Lamda ?

Also  pvdkds_w  BoostPressureActual, is it reading in mbar? which mean I should convert it to 1 millibar =
0.0145037738 psi ? so if I am at 411mbar = 5psi ? since we are above sea level I added 5psi-14psi= -9psi then covert to mmHg??
but according to this website

 http://forums.vwvortex.com/showthread.php?5935270-UnOfficial-Eurodyne-Maestro-Tuning-Handbook&p=80423480&viewfull=1#post80423480

in the middle of the page right under **Target Filling** {KFMIRL}
there is a chart shown:

10mbar = 1psi?

is that what the ECU is reading?


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: nyet on July 07, 2013, 08:01:50 PM
411mBar is vacuum (ambient at sea level is approx 1013mBar)


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 07, 2013, 08:23:39 PM
DO u know anything about uulsuv_w o2 wideband voltage read out?  can i use to the picture V_AFR for the calculation


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: phila_dot on July 07, 2013, 10:22:26 PM
No, just use lamsoni_w.


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 08, 2013, 07:18:14 AM
Please take a look of the picture I attached. I am confuse because the value on lamsoni_w bounds between 0-5  what is that mean? is that written in voltage?


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 08, 2013, 07:18:45 AM
Please take a look of the picture I attached. I am confuse because the value on lamsoni_w bounds between 0-5  what is that mean? is that written in voltage?


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: QuattroEd on July 08, 2013, 08:01:08 AM
If I can make a suggestion here, It might be more understandable if your engine was fully warm  before doing any logging, unless of course you are looking at adjusting warm up fuel.


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: phila_dot on July 08, 2013, 08:36:02 AM
Something is wrong with your definition.

lamsoni_w is actual lambda.

uulsuv_w is O2 sensor voltage and will be 0-5v.


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 08, 2013, 09:11:39 AM
Something is wrong with your definition.

lamsoni_w is actual lambda.

uulsuv_w is O2 sensor voltage and will be 0-5v.

You are right,  the graph I pulled actually is lamsoni_w which shouldn't be 0-5 . 

the thing is I didn't need any definition to create a log data? I only needed the bin ?that's why I am so confused


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: nyet on July 08, 2013, 09:16:52 AM
Yes. ME7L can make a definition file for you based only on a bin... but it must be *stock* for best results. Some modified bins can confuse it.


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: phila_dot on July 08, 2013, 09:46:54 AM
What is AugB logger?


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 08, 2013, 09:54:07 AM
What is AugB logger?

I mean me7logger


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: nyet on July 08, 2013, 09:55:40 AM
Please stop posting screenshots, and post the actual .csv.

Also consider using ECUxPlot to graph them properly.


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 08, 2013, 11:44:38 AM
Please stop posting screenshots, and post the actual .csv.

Also consider using ECUxPlot to graph them properly.

Roger that!

my question is how can I verify the value for the lambda is correct if I am using a " stock map " I never downloaded a stock map for my car , I just loaded a stock map from a member posted on here, however pretty much i have to re-work most of the map to get my car run properly.



Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: nyet on July 08, 2013, 02:08:07 PM
You're confusing a bunch of separate issues.

ME7Logger has an algorithm to find where in RAM various variables are stored. It is most reliable when used on stock images, not because it depends on the maps in the binary being stock, but because other modifications (i.e. to the code) can confuse it.


Title: Re: lamsoni_w vs. uulsuv_w ..what about pvdkds_w in mbar
Post by: itemonsale on July 08, 2013, 03:10:17 PM
You're confusing a bunch of separate issues.

ME7Logger has an algorithm to find where in RAM various variables are stored. It is most reliable when used on stock images, not because it depends on the maps in the binary being stock, but because other modifications (i.e. to the code) can confuse it.

Thank you. I used the stock map and everything read below 1 now. Thank you again