Wide band o2 sensor voltage to A/F Ratio?

Post by **Dustin240** » Mon Sep 25, 2006 5:45 pm

Wide band o2 sensor voltage to A/F Ratio?

I know that a single wire reads from .0 to 1.v and .3-.0=lean .3-.7=14.7a/f .7-.9=13.2a/f .9-1.=10+a/fBut what is it for wide band .0-5.v?

Post by **Ligouri Rd** » Tue Sep 26, 2006 3:51 am

It is not that simple. The wideband voltage to A/F relationship is a curve. I don't believe that there is a direct voltage to A/F ratio...it varies due to temperature and humidity. That is why the wideband needs to be calibrated in open air (known ~20 A/F ratio or 1.405 lambda) before use. You need something to read the wideband sensor, there are some diys here :http://techedge.com.au/vehicle/wbo2/

Wide band o2 sensor voltage to A/F Ratio?

Wide band o2 sensor voltage to A/F Ratio?

Re: Wide band o2 sensor voltage to A/F Ratio? (Dustin240)

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