Wiring up AEM UEGO wideband for use with S300

[DV8]

Hi Guys,

just wondering if anyone can confirm that i've wired this up right for stable readings.

Ground/Earth - Thermostat Housing (is this the same as ECU?)
Switched Live - Own source from under dash fuse board (should this be the same as ECU - anyone know where this is if required)
White output - Into EGRL input (pin D12)

Going to be using these settings:
0v=10.00 AFR
2.3v=14.70 AFR
5.0v=20.00 AFR

Thanks in advance for any comments

[Spunkster]

Have you checked to see if it is reading correctly?

[DV8]

Have you checked to see if it is reading correctly?

Tried to but the reading was just coming back as 1.0 instead of the 14.7 the gauge shows. Guessing theres a box somewhere i need to tick to change it over?

[98preludeJRSCh22]

go up to the options tap click it then go down to setting. i think under the sensors tab you can change it to read in a/f ratio (I.E. 14.7:1) instead of lambda (I.E. 1.0) if its not in that section just keep looking its there some where in that area

[DV8]

Managed to get it to read pretty close to the reading that the gauge was giving out.

Then as i was using it the display would randomly hold around the 10 or 19 mark (resetting the app would bring it back to reading as the gauge is).

[DV8]

Managed to get it to read pretty close to the reading that the gauge was giving out.

Then as i was using it the display would randomly hold around the 10 or 19 mark (resetting the app would bring it back to reading as the gauge is).

Anyone got any thoughts on this... seems local to the Hondata as the gauge was reading around 14-15 and the Hondata reading would more or less match it.

[Spunkster]

What wideband are you using?

[DV8]

What wideband are you using?

Thanks for getting back to me... love this forum.

Using a AEM UEGO Wideband.

White output is going to D12 EGR... it seems fairly random how it locks on too 10 or 19 and some times it's fine.

Just wondered if this had been covered and fixed before?

[Spunkster]

Have you tried a different input on the ECU, such as D10? This is not something I have heard of before.

[DV8]

Have you tried a different input on the ECU, such as D10? This is not something I have heard of before.

Not yet. I have an EK9 which I believe uses the ELD. I'll give it a go if it happens again.

Just out of curiosity what would the Hondata AF display show if the connection was lost (due to poor pin or wiring)?

[Spunkster]

It will read fully lean without the input connected. Check your connections.

[PR8urvtec]

I'm using the following with the same wideband and gauge.

Red -12v at an unused source from the under dash fuse box. There are unused 12v sources that you can use by adding a male connector to.
Ground - at thermostat house on engine. Same as ECU ground
White - to pin D10 (ELD) on ECU (disabled ELD under misc. tab in parameters window)

Voltage offset
-0.29v

Voltage / Lambda conversion table
Voltage - 0.00 / 2.47 / 5.00
Air/Fuel - 10.00 / 15.00 / 20.00

My reading on Smanager is pretty much spot on up to the tenths value.