quick AFR question

[cbarr300]

quick question about datalogging AFR.....Is the value supposed to show up around 1 or so....example: .983, 2.24.....or is the value supposed to show up around 14.7 or 14.8


I'm just wondering if maybe somethings messed up in my datalogging or if I have to do some math to find out what my wideband's saying

 

[Stanger007]

Which Wideband O2 and datalogger software are you using?

Wideband O2s output anywhere between 0-5v, each different voltage corresponds to a different ratio. e.g. 3.1v would be 14.6:1 while 2.8V would be 11.6:1 .

You could be seeing the voltage output?

My LC-1 Wideband can be programmed to a certain voltage range as well. This is useful if you want to simulate a narrowband O2 or have some bizarre logging requirement.

On my wideband, the output I use for my gauge is on the 0-5V range and the output I use for my twEECer is programmed to output in the 1v-2V range.

 

[cbarr300]

I'm using PLX's M-300 and I'm using tweecer to datalog everything...

I was thinking that I was seeing the output voltage as well but I'm not 100% sure. I'm gonna check tonight to make sure everything is hooked up right.

Thanx for the input stanger

 

[Stanger007]

No problem man, holla back if you need any more help.