After searching msextra I was able to find the .inc file for the aem uego. I plotted the data and it matched identically with the FM data.

Here is my new source of confusion. When you first start a project in tunerstudio you get to select which wideband sensor you are using. Do I then still need to go in and calibrate AFR? The only AEM uego under the calibrate AFR does not match the .inc file values.

I think that I have probably screwed up and should not be calibrated my wideband after I have selected the correct gauge in the project.

Please help clear this up.

 

select AEM gauge, not AEM UEGO. it reads spot on.

 

You are referring to the project preferences setting correct? Then I do not have to calibrate AFR under the tools menu correct?

 

I managed to get my non linear aem gauge working in tunerstudio. The values I am getting in tuner studio makes sense. i.e 19.5 afr while car is off and about 13 while it is idling.

There are two locations in tunerstudio that have to be setup correctly to get the proper o2 readings. The first is in the project settings. There is a selection for non linear AEM gauges in this section. AEM uego 23xx. The second area is under tools -> calibrate afr. This it seems, is where the afr table values are sent to the ecu. There is no setting in this section for the nonlinear aem gauge.

There is however an inc file "aemWBo2.inc" in the tunerstudio -> inc directory. I plotted these values against the data set that AEM sent me. They are spot on.

So

I went into ms2referencetables.ini and scrolled down to the calibrate aft table section. I then added the following line:

solution = "AEM Non_Linear AEM-30-23xx", { table(adcValue*5/1024 , "aemWBo2.inc") }

This now adds a "AEM Non_Linear AEM-30-23xx" selection to the tools->calibrate afr drop down menu.

This appears to convert the adc values to volts and then reference the chosen file to recall the afr values.

I am still waiting for Matt from diyautotune to verify that what I have done is correct or stupid.

 

Should be OK, let me know how it works for you!