Anybody out there data logging AFR in EVOSCAN with an AEM UEGO wideband gauge with analog face (#30-5130)?

Like this one.
http://www.aemelectronics.com/wideba...nalog-face-770

I have it installed and hooked up and EVOSCAN will not read it. As far as I can tell it is setup right. Everything else logs fine, just no wide band.

Note this is not the more common and older digital face gauge (#30-4100). It seems the two gauges have a little different logging wire connections. Maybe its not wired into my laptop right.

Please help

UPDATE 3/19/12: through much testing and comparing, I find Evoscan eval formula "7.95+(18.05-8.43)*x/215" logs very close to the gauge. I'm on Tephra V7

 

I am having problems with my logging also, but then again, I lent my laptop out and now it doesn't log my digital AEM anymore...

Did it ever work with a digital AEM? Com port 3

What operating system is the laptop? XP uses hyperterminal. Vista and 7, you will have to download it.

Also, for the life of me I cant get it to work on my Vista either,LOL

 

Thanks for the help!!! I have Windows 7. The drivers loaded fine and it is set to com2. The computer sees the serial port. I haven't had any other afr gauge connected. This is my first wide band. I was thinking maybe it could be the settings in evoscan. What is your "eval" setting in evoscan? Mine is "x". Is that right?

 

I use the digital AEM logged thru the ecu via the rear o2 sensor. It works perfect after a little tweaking of the scaling. No extra cables to hook up each time I want to log or messing with com ports.

 

I don't mind the extra cable if it works.LOL

What are your evoscan settings?

 

Anyone? What's your "Function" setting for your AEM Widedand in EVOSCAN?

 

OK, not really getting any help for with the serial cable and I've read through all the threads here I could find for trouble shooting USB to serial canle problems. Maybe the tap into the ecu would work you me. Can you point me to a good thread on how to tap into the ecu or better yet explain how you are setup? I would really appreciate the help as I am getting frustrated.

 

I got mine to work with my Vista.

downloaded the hilgrave hyperterminal. opened it up didn't work,LOL

went to evoscan ,upper right under wideband, found I had 3,4, and com 5.

tried all three and mine was com 5.

the x you need to click is the WBD above the knocksum

Also, check with a multimeter your serial cables are connected correctly. one should be .3-.7 ohms to ground and the other about 2.3 volts and changing.

 

Take a look at this thread.

https://www.evolutionm.net/forums/ec...ial-cable.html

I don't think your gauge has a digital output to log over a serial connection. Since it's strictly analog, the output wire is 0-5v output. That will require tapping into the ecu to log with evoscan.

 

I've tried all the com ports in evoscan as well, although the device manager is clearly reading the my usb to serial cable on my com2.

Regarding multimeter testing, you are suggesting to test the two pins on the end of the serial cable as it comes from the functioning gauge? If so, do I touch each pin and a chassy ground with the meter or touch both pins at the same time with the meter?

 

Thanks. I'll read it through.

 

It seems you are obsolutely right. Thanks for the help! The AEM wide band gauge with the analog face does not have a serial output wire like the one with the digital face. You are also right my only option is to tap into the ECU for logging. I just wasted ~ $60 on a serial cable and a usb to serial cable . Anybody need a slightly used one ???

Looks like I now need an small Evo9 pin to make the tap.

 

http://www.evoxforums.com/forums/showthread.php?t=56919

http://www.maperformance.com/aem-ana...-30-5130w.html

You can log with your unit...Or I'll buy it for cheap, LOL

 

Yeah, that's the one I have. I'll be tapping into the ecu like the other post. Thanks.

 

OK, I've got the gauge analog output tapped into the ECU rear O2 sensor pin like many threads here explain and Evoscan logs a signal. Problem now is the afr log reading is off and it does not follow the gauge at all when driving. Obviously the eval formula in Evoscan is incorrect, right? I have found and read at least 10 threads about logging afr from wideband gauges here and have tried every single eval formula listed in every one of these threads. I've tried the formula in the gauge install instructions and I've tried adjusting the formula. Still wrong! I can easily get it to read the same at idle by trial and error adjustment, but then the scaling is wrong and it doesn't read along with the gauge.

Remember I have the AEM gauge with the analog face. It has slightly different analog output than the one with the digital face. According to my gauge install instructions, the gauge analog output wire voltage is linear and varies from 0.5V at 8.5:1 afr to 4.5V at 18.0 afr. They even list a formula of afr = 2.375*x+7.3125, but this formula reads way off. Evoscan logs valves of something like 42 afr with this formula.

This is really starting to get to me . Does anyone have any idea of what I can try next?