Loggin AEM Failsafe Gauge in Evoscan
Loggin AEM Failsafe Gauge in Evoscan
I was wondering if anyone knew how to configure the new AEM failsafe gauge to log in evoscan. It comes with as usb so if figured it would be a simple plug and play application but it turning out to be quite the opposite. When I plug into to my laptop it recognizes it as a usb device, not a comport device so I think this is where the issue lies. Im sure I could piece together the typical serial-usb adapter that is needed for the UEGOs, though I was hoping to avoid that since this cam with a usb output already.
this gauge is a huge pain in the ***. im still tryin to figure out why it wont display boost around the outside. and for some reason the numbers around the outside dont light up. im going to tuner tomorrow ill see if he can answer your question.
I read so many good things about this gauge so i went out and got one. Not being able to log in evoscan is definitely my biggest gripe with it so far, but there are little things about it that bug me, such as the the outside numbers not being back lit and the fact you have to run a vacuum line inside the car to the gauge instead of having a sending unit.
i have the AEM x-wifi unit. it has a usb out. i know i was able to get the usb to work and log in evoscan. i know i had to fiddle with it for a bit but all i needed was for it to work once and log it side by side with the values from the rear o2 (wideband connected to factory rear o2 wiring to log in evoscan with no additional wires).
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i have the AEM x-wifi unit. it has a usb out. i know i was able to get the usb to work and log in evoscan. i know i had to fiddle with it for a bit but all i needed was for it to work once and log it side by side with the values from the rear o2 (wideband connected to factory rear o2 wiring to log in evoscan with no additional wires).
This is from the failsafe gauge page on AEM's website:
Users with an AEMnet-equipped (CAN bus) device can daisy chain the Wideband FAILSAFE gauge using the AEMnet connection (adapter sold separately). Non AEMnet devices can communicate with the device using the CAN 2.0B spec protocol. An analog output for O2 feedback is provided for users without AEMnet or CAN-equipped devices to hard wire the gauge for O2 feedback or logging in a stand-alone logger.
Last edited by Griffin5; Nov 12, 2012 at 07:00 PM. Reason: Added more info.
Dont know if anyone has found an answer yet but thought id update this since im looking to switch out my UEGO for one.
According to the manual theres 2 analog outs. One for the MAP (Yellow WIre) and one for AFR(white wire). This can be seen on page 3 (labeled page 4).
On page 16 of the pdf (labeled 17) it gives the voltage scaling for both out puts. So this should be no different to log off the rear o2 than any of the other widebands.
Link to the manual
http://www.aemelectronics.com/Images...%2030-4900.pdf
I will say I have installed a few of these in Subys and I like that its both gauges in one. But the display annoys me that it really doesnt match any other gauges.
According to the manual theres 2 analog outs. One for the MAP (Yellow WIre) and one for AFR(white wire). This can be seen on page 3 (labeled page 4).
On page 16 of the pdf (labeled 17) it gives the voltage scaling for both out puts. So this should be no different to log off the rear o2 than any of the other widebands.
Link to the manual
http://www.aemelectronics.com/Images...%2030-4900.pdf
I will say I have installed a few of these in Subys and I like that its both gauges in one. But the display annoys me that it really doesnt match any other gauges.
I have a IX so I'm not sure how relevant this info is for you guys but, Because the AEM failsafe gauge is not a simple RS232 device like most widebands, it cannot be recognized by EVoscan. The problem is that the gauge is sending lots of information over the usb and must be connected to the AEM software for logging. IDK if they will come out with a patch for the software that will put the AFR on a virtual com port so you could log it using evoscan.
The simple thing to do is just use the analog AFR output and wire it to an unused known input on the ecu and log it straight through the ecu, that is what I am currently doing.
The simple thing to do is just use the analog AFR output and wire it to an unused known input on the ecu and log it straight through the ecu, that is what I am currently doing.
Also you could use this:
http://www.evoscan.com/evoscan-gps-o...nel-0-5v-input
and then have evoscan monitor multiple 5volt inputs from whatever.
This is in effect what you are doing when you put the analog output from a conventional AEM AFR guage into the rear o2 input of the car. You could theoretically wire in any 5volt analog gauge output signal the same way and configure Evoscan to log it, so long as you have the values that each volt represents. Using this method you can wire in ANY wideband that has a 5 volt output.
Also you could use this:
http://www.evoscan.com/evoscan-gps-o...nel-0-5v-input
and then have evoscan monitor multiple 5volt inputs from whatever.
Also you could use this:
http://www.evoscan.com/evoscan-gps-o...nel-0-5v-input
and then have evoscan monitor multiple 5volt inputs from whatever.
I have this item and firstly, I can only get it to sort of work. Secondly, they have taken it off of their web site. I can't get Hamish to respond to any of my messages on the problem. I was able to get it to log using the dlp, but unable to get evoscan to change the values once it was loged. Didn't matter what I did to the funtion of x.
I have given up on it. $60 down the drain. And am now logging via the rear o2.






