AEM UEGO and S300

[Spunkster]

What do you mean by setting on the AEM?

[Az786]

At the back of the gauge there is some sort of switch is that right

[Spunkster]

You will need to look at the documentation that came with your AEM to see what it should be set to.

[Az786]

I will check that now. Any other ideas to what the problem could be?

[Az786]

It is set at the default position which is to display afr values as per aem user manual.

[Spunkster]

Use a multimeter to measure the voltage of the signal coming from the wideband controller. Then compare that value to the calibration info and see if it matches what the gauge is reading.

[Az786]

Where in the calibration info do I need to compare this?

[Spunkster]

Look in the calibration information that cam with it to see what the voltage translates to in AF.

[Az786]

I have just checked the voltage coming from the widebandand and checked in the aem manual and it translates to the correct afr value which is what displaying on the gauge.

Can't understand why I'm having this problem!

[Spunkster]

How exactly are you setting the voltage offset?

[edwardsd1987]

I am trying to wire my AEM Wideband as well, but from research I have done on here sounds like D10 is the wire to run in to. I have a 99 Honda Civic SIR(American SI) but it appears that I don't actually have an ELD? I want to run the 0-5volts that the Wideband should run on but...without the ELD it looks like my only other option is on the D14 circuit. Sorry if this is not the best spot to have this question answered I'm new to this forum.

[Spunkster]

What ECU are you using?