Readings from Denso O2s sensors

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Oct 21, 2014 | 06:58 PM

wrd1972

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Readings from Denso O2s sensors

Well I just installed some new Denso O2 sensors and noticed that at WOT, the voltage readings were locking in at around .920V

The Delcos I used to have locked in at around .820V or so.

Clearly the reading between the two brands appear different while using the exact same tune. Also their are no apparent issues that would frig up readings.

Is this really a concern?
Or is it all relative to the PCM?

Thanks

Oct 21, 2014 | 07:18 PM

96capricemgr

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As has been covered before narrowband O2s are only accurate at 450mv which is about 14.7:1 AFR higher number is richer, lower number leaner but NOT linear.
Your result only proves that.

Oct 21, 2014 | 07:38 PM