I have aem uego output pluged to ems o2 1. i had problem with it. when the gauge shows 13.5, the aem ems showed 14.7. i
i thinked about my uego output had problem.
i bought an innovate lc1. i pluged to ems o2 1. i callibrated good. at the same time i pluged the uego output to ems o2 2. now the uego gauge shows 14.7, the o2 1(lc1) shows 13.5 and the o2 2(uego output) shows 14.7.

what is going on???

 

you need to set the gain up.
take the innovate out and start over. Hook it up how you had originally. Uego to O2 #1. Car off ignition on go to set up- sensors-oxygen sensors-o2sensor #1-wizard and select which wideband you using.

Then do that same thing again and select option. Set up- sensors-oxygen sensors-o2sensor #1- Option. The gain menu will pop up. If you using the XXXX-u ems just unplug the sensor from the box and change the gain to have the o2 #1 volts read 3.94v. If your using a gauge and its wired to O2#1 unplug the plug on the back of the uego gauge (not the power plug obviously the other plug) The change the gain if need to be to get a reading of 14.7 in the ems since the gauge unplug will be reading 14.7

 

thanks. now its perfect.

how about O2 feedback. if the O2#1 sensor fail, the ems automaticly use only O2#2?

 

no O2 feedback can only be used from o2 #1.

I have a xxxx-u but not using o2 #1 cause i have an innovate. I can only hook mine to o2 #2 so i cant use feedback at all