AEM e85 UEGO logging Setup questions.

[4g63t]

I have this 30-5143 E85 Wideband Air/Fuel Gauge 5.7 to 11.9:1AFR Analog Face
WB set up in my 1g dsm. I have it wired into my factory o2 wire at the ecu.
Question is how to set it up to log it in link. I cant tell if it is right because my gauge reads differently than link. My gauge reads the true e85 from 5.7 to 11.9 and link reads a gas afr? Just need help getting the readings to match up.

Only way I have gotten it close was setting it up as a linear wb and setting the low voltage at .5 and the high at 4.5 then selecting 6:3:1 afr under gauge settings. I know this can’t be the right way to do it . Can someone help me set it up right. Thanks!

 

[snowborder714]

Try searching the tech articles next time.
http://www.dsmtuners.com/forums/articles-tuning-ecu/428702-ecmlink-linear-wb-calibration.html

 

[4g63t]

I did and your missing what im saying. This is not a wideband that reads 14.7 for a gas afr. so the numbers do not match up.

 

[turboglenn]

EDIT: after reading about it that sensor won't work as your promary 02 sensor, it doesn't register the 14.7:1 range or much around it even. You'll need to run a narrow band for closed loop operation and then log that as 0-5v input and convert the AFR fromthe voltrages using the chart in the directions that vcame with the AEM WB02

 

[4g63t]

Ok, i got some things to try tomorrow. Thanks!

 

[turboglenn]

OK, I was a little wrong, the richer labeled e85 values are still based on a stoichometric reading centered at 1.00 lambda, so the way you have to look at it is that the richest value is = to 10:1 gas and the leanest is = to 19:1 gas.

THere still should be a voltage cross refference in the manual,.if not download the manual for the normal AEM WB02 and use the one in it. Being it's the bosch sensor and basic same config internally the only thing ytoiu're looking at is the E85 equivelants to the gas AFR"s the normal one reads

 

[MY1GDSM]

Try searching the tech articles next time.
http://www.dsmtuners.com/forums/articles-tuning-ecu/428702-ecmlink-linear-wb-calibration.html

While this works... .

Someone like the OP that has a freshly built motor more then likely doesn't want to be adding a bunch of fuel to the mix while running at Idle.

If I could post in that thread I would. But, since I can't I will here... .

Using a AEM Gauge there is no reason to have the Car running. As when you unhook the o2 it will default to 14.7 or lambada 1 and you can match it up that way for the first Part of the Video.
For the last part I would say that this would be a much better approach then what was done in the Video.

Watch This Video on how to make the gauge go rich instead(and test for a bad sensor)...

Before you do that OP I know this will sound familiar
You will set the value he says as min volts to .683 to start with(I've never really trusted the AEM white papers and only seen them be right a few times). You will have to change it but that is the starting point... you will just have to go to where it is 10:1(6.1:1 in Ethanol AFR) in the log and match this up... Set the option for Stoich at 9.8:1 if your matching the log to the gauge and 14.7 for reference of the AFR in gas scale.

Basically just fallow the instructions in the 2nd video posted in the link above. just take out all the parts of adjusting the car running since they will be Needless.

 

[ed1380]

Dsmlink can simulate a narrowband signal.

 

[MY1GDSM]

Dsmlink can simulate a narrowband signal.

You mean V3 Ecmlink?

Aside from that I think your missing what glenn was saying and the fact that he corrected what he said after reading into it more... .

 

[4g63t]

While this works... .

Someone like the OP that has a freshly built motor more then likely doesn't want to be adding a bunch of fuel to the mix while running at Idle.

If I could post in that thread I would. But, since I can't I will here... .

Using a AEM Gauge there is no reason to have the Car running. As when you unhook the o2 it will default to 14.7 or lambada 1 and you can match it up that way for the first Part of the Video.
For the last part I would say that this would be a much better approach then what was done in the Video.

Watch This Video on how to make the gauge go rich instead(and test for a bad sensor)...

Before you do that OP I know this will sound familiar
You will set the value he says as min volts to .683 to start with(I've never really trusted the AEM white papers and only seen them be right a few times). You will have to change it but that is the starting point... you will just have to go to where it is 10:1(6.1:1 in Ethanol AFR) in the log and match this up... Set the option for Stoich at 9:1 if your matching the log to the gauge and 14.7 for reference of the AFR in gas scale.

Basically just fallow the instructions in the 2nd video posted in the link above. just take out all the parts of adjusting the car running since they will be Needless.

Ran through this about 10 times and I think I got it. I was running into a problem of getting the full 5v at 9 afr and anything over. I was like WTF how does the voltage max out at 9 afr. I then went to aem's web site and they said if you don't have the brown wire grounded it can cause inaccurate readings on your 5v signal for logging. (On analog gauges) I then checked my grounds and my brown ground was loose. Tighten it down and bam, now it was readings a lot closer. I then found what voltage was stoich buy turning the key forward my analog gauge needle wound sweep the scale. 9.0:1 is was at like 2.83v. Also had to find volts for full rich .51 on my wb raw log. I then plugged in the numbers and had to tweak the scale a little to get it to read right. .
BLAH PITA