Cannot get AEM X Series UEGO to work with Haltech.
 

Good morning!

I wired up my AEM wideband last night to my Haltech Platinum Pro last night and the ECU does see the gauge but the values do not fluctuate with the gauge at all. It either stays at 9.5 or 20 AFR in the Haltech software.

I'm only running the gauge for monitoring purposes and would like to datalog with the Haltech software. My car is tuned to run off the OEM primary o2 sensor.

I tried both AVI1 and AVI2 pins on the ECU and grounded the gauge to the Haltech as well with no luck.

I know with AEM EMS you need to wire the analog ground wire to the EMS.

Did you add the AEM scaling formulas in Haltech main setup? The scaling formulas are in the AEM manual.

I have the same X-Series wideband but on a Haltech Elite 2500. It works pretty well once it gets going.

Yea I used their formulas, I'm going to start fresh with new wiring and see if maybe there's something stupid going on like shielding in the way or something.

If it's still giving you issues after that, PM me your map and I can take a look at the settings.

Awesome brotha, thanks!

Your X-Series gauge is capable of CAN communication. It’s super fast. That’ll work great with AEM Infinity since it’ll received CAN signal your WB is able to provide.

Yet you’re providing subpar signal (analog, not CAN or even serial) to a fantastic Haltech ECU.

See if you can get the awesome Haltech ECU to work with AEM’s CAN communication. Honestly, I think they keep the signal proprietary. If further research proves my hunch right, sell AEM WB, buy Haltech CAN WB and get the fastest and most reliable results (AFR/LAMBDA).

Edit: You have Haltech Platinum, not an ELITE. I revived an old thread and my recommendation does not apply here. Sorry guys. If you have an ELITE though... I stick to my story.

Haltech Pl Pro + AEM WB connection
 

were you ever able to get your ecu and aem controller to operate correctly? I have the same setup but have not connected the output wires into the gauge/controller yet. Earlier on the thread you mentioned trying the avi on the ecu but isn’t the wire harness the comes from the controller output and not input ? Thats why I’m confused as to how these aem widebands can do anything but monitor the Afr’s if the wires coming off the controller/gauge are outputs?