O2 sensor is actually a temperature sensor???

[Greg Hermann]

>>Basically, either they taught you wrong, or you remembered wrong. An EGO
>>(Exhaust Gas Oxygen) or HEGO (H for heated) sensor is an electrochemical
>>cell that detects the presence or absence of oxygen in the exhaust stream,
>>but which only functions decently above certain fairly high minimum
>>temperatures.
>
>This is correct in the zirconium type oxygen sensors, however the titania
>type sensors are constructed differently and have a few different
>properties. For instance, the Titania sensor does not have to be heated to
>600 farenheit in order to output a reliable reading.  Also, instead of using
>the current flow between two platinum plates, it uses a semiconductor that
>changes resistance in relation to oxygen content in the exhaust.
>
>I guess nitpicking isn't the best way to make my first post, oh well, I'm
>not like this all the time. =)
>
Well--

I wasn't aware of the existence of the titania sensors, so thanks for the
education, Eric! :-)

Greg

>Hi list.
>
>Eric Payne
>
>
>
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