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Connecting Aem WBo2 to EMU
Posted: Mon Sep 15, 2014 8:21 pm
by skogs
There is a wire from aem's wideband-controller that gives 0-5V for 10-18 AFR. How to properly connect and set this up with the EMU? Both WBo and EMU are installed, but they are not connected to each other yet. I want to connect it for logging purposes.
Re: Connecting Aem WBo2 to EMU
Posted: Mon Sep 15, 2014 8:41 pm
by ATS_Scott
You will want the white wire off the AEM WB (0-5v output), and connect that to an available analog input on the EMU. Then go to Sensor Setup/Oxygen sensor, and select External controller, and then under input, select the analog input you chose previously. You will need to also input the correct calibration for your sensor, and I have found that the AEM published info is (almost) correct. You just want the EMU to report what you see on the AEM gauge, and there will be variations caused by different grounding locations.
Re: Connecting Aem WBo2 to EMU
Posted: Mon Sep 15, 2014 9:11 pm
by skogs
Thank you scott!
Re: Connecting Aem WBo2 to EMU
Posted: Mon Aug 22, 2016 9:06 pm
by pepifebles
ATS_Scott wrote:You will want the white wire off the AEM WB (0-5v output), and connect that to an available analog input on the EMU. Then go to Sensor Setup/Oxygen sensor, and select External controller, and then under input, select the analog input you chose previously. You will need to also input the correct calibration for your sensor, and I have found that the AEM published info is (almost) correct. You just want the EMU to report what you see on the AEM gauge, and there will be variations caused by different grounding locations.
If there is variations, What data is more reliable ? Why should I trust that ?
Re: Connecting Aem WBo2 to EMU
Posted: Mon Aug 22, 2016 10:46 pm
by PSI-Motor
Guage data.
Re: Connecting Aem WBo2 to EMU
Posted: Mon Aug 22, 2016 11:04 pm
by pepifebles
Thanks mate.
Re: Connecting Aem WBo2 to EMU
Posted: Tue Aug 30, 2016 3:32 pm
by ATS_Scott
PSI-Motor wrote:Guage data.
Exactly,
Pepifebles, the only reason to adjust what you see in the EMU is to more accurately display what the gauge shows. It is important for using target lambda (AFR) that the data the EMU sees is accurate.
Re: Connecting Aem WBo2 to EMU
Posted: Tue Aug 30, 2016 4:06 pm
by pepifebles
Ok. What set do you have in lambda sensor? I tried 10-17.25 up to 19.50
Re: Connecting Aem WBo2 to EMU
Posted: Wed Sep 07, 2016 7:46 pm
by Mobilelpg
Hi,
If it helps, I am using the same setup and the only way I could get the ecu to read accurately what was on the gauge was to earth the wideband gauge into the sensor ground on the ecu and then to get the readings to match I had to use--
AFR at 0v = 10.25 AFR
AFR at 5v = 19 AFR
This may not be the same for you but after much tweaking these were the settings that got the ecu to match what I was seeing on the gauge within 0.1 AFR.
Edward.
Re: Connecting Aem WBo2 to EMU
Posted: Mon Sep 12, 2016 11:00 pm
by pepifebles
Mobilelpg wrote:Hi,
If it helps, I am using the same setup and the only way I could get the ecu to read accurately what was on the gauge was to earth the wideband gauge into the sensor ground on the ecu and then to get the readings to match I had to use--
AFR at 0v = 10.25 AFR
AFR at 5v = 19 AFR
This may not be the same for you but after much tweaking these were the settings that got the ecu to match what I was seeing on the gauge within 0.1 AFR.
Edward.
Thanks, I'll try it.