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Re: AEM UEGO 30-4110 Install
Posted: Thu Feb 06, 2020 5:40 am
by dluder
I've got the same gauge. Mine is at -.12 and my friends is -.22
Re: AEM UEGO 30-4110 Install
Posted: Thu Feb 06, 2020 11:36 am
by ecronic
Dear All, thank you for your support. I figured what the problem was.
In the Parameters-closedloop advanced tab there's a setting for input voltage source. Those settings were wrong. I changed them to setup as per AEM and the I had to adjust the voltage offset to -0.30(autocorrected by s300 to -0.29) and now both the gauge and s300 read same AFR ratio with very minor variance (0.01-0.05). I hope this setup is okay.
Re: AEM UEGO 30-4110 Install
Posted: Thu Feb 06, 2020 11:38 am
by ecronic
dluder wrote: Thu Feb 06, 2020 5:40 am
I've got the same gauge. Mine is at -.12 and my friends is -.22
Can you tell me which point you used to ground the gauge? And also whether you used D10 or D14 for Analog input. - thanks.
Re: AEM UEGO 30-4110 Install
Posted: Thu Feb 06, 2020 7:46 pm
by skaterguy1986
Should have a near zero voltage offset, if you have more than 0.02 then the ground isn't good.
The wideband controller should share the same ground as the ECU, Either run a ground wire to the thermostat housing (ugly approach) or use a open barrel splice to A24 (requires special tools to splice to existing wire but cleaner install).