EQ showing as AFR?

[epfatboy]

I have an AEM 30x AEM AFR Gauge and have it configured thru a serial port. I have pulled in the AEM AFR channel and it has been reporting thru the scanner no problem. I recently added the AEM EQ and it is reporting as if it was the AFR not Lambda...

What am I missing?

I've tried to restart the scanner, reboot the system, transformed the channel, and I keep getting AFR

[epfatboy]

So I tried another laptop but no dice, I even loaded up another saved channel config and added the AEM channel to that list, same thing...

I then realized HP Tuners is installed on a shared drive... so I'm guessing I have something stuck in a system file somewhere.

I also uploaded the channel config in case I'm doing something very stupid..

[lanebaumann]

I am having this exact issue and I just submitted a help ticket for it. If it is happening to multiple people then I'm guessing its a VCM Scanner issue and not some weird user error.

[LilSick]

you storing everything locally?

[aaronc7]

if you right click on the item in the channel list - Units, can you change the units there to whatever you want.

For example on my innovate unit, I am logging "EQ ratio" but I display it as lambda or AFR gas depending on how I feel that day.

[LilSick]

correct

but which units are being displayed does not change all by itself

at least mine never has


why would anyone wanna use afr anyways?

: )

[aaronc7]

also, what you select as units in the left hand channel list is independent of what you choose to display in the chart vs time display. Check all of those, that's probably the issue.

[lanebaumann]

The units are not the issue. If you change the EQ Ratio channel unit to AFR, it just multiplies the supposed "EQ Ratio" By the stoich for that fuel. This is very much an issue with the scanning software from what I can tell. I have no issue connecting and reading AFR, so why would lambda suddenly be the problem?AEM EQ Ratio Issue.png

[LilSick]

holy smokes...

that thing is way lean : )

which version of the suite is that???

[lanebaumann]

Yea I'm having some issues tuning an idle right now and I think my wideband is biasing lean at idle. Narrowbands are bot happy there. The truck has a set of longtubes and a truck norris cam. I did just verify that all joints are tight and the sealing surfaces are good so I dont believe it is any sort of leakage isssue.

5.1.3824 Beta. The issue is also present on the stable release 5.0.4.

[lanebaumann]

Update for everyone. The issue ends up stemming mostly from user error. On the serial interface specifically, the AEM 300 series gauges only output what the gauge is currently reading on the face. So if you are showing AFR (Which is the default), then the serial output ONLY outputs AFR. Switch the gauge to Lambda and you get ONLY lambda. This is a little confusing in VCM scanner since users are led to believe that you can read both at once but I have a feeling it is setup that way to maintain the use of "generic" sensors.

Also note that the Lambda reading needs to be scaled by a factor of 10. Do this by selecting the channel>Transform>Parameter>AEM 30-(03XX). Then in the function row, your equation should be (Input/10)+0=Output.

You should be getting good readings in VCM Scanner that now match the gauge exactly.