Cheap O2 Sensors and reference air

[Raymond C Drouillard]

On Fri, 9 Oct 1998 18:09:37 +0000 xxalexx at ix.netcom.com writes:
>> Ok, I'll bite. Could someone please explain to me how the reference
air
>> for an O2 sensor is inside the wire or comes from the wire? I had kind
>> of figured there was an active layer (or layers), with thin conductive
>> film electrodes on each side, which still allowed O2 to pass through,
>> with the wires attached to the thin-film electrodes.
>
>There is a molecular diffusion transport mechanism involved.
>The wires could release O2 at the boundary layer, from various
>diassociation energies, such as cosmic rays or high temp, depending
>on impurites and  mislocations but the amount would be small.
>alex

Also, if the muffler bearing is siezed, the gamma rays released by the
accelleration of the exhaust valve faces won't have a straight shot to
the O2 sensor.  This will cause the O2 sensor to drift out of calibration
over time.

Ray

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