O2 sensor question

[Greg Hermann]

>The new model Cadillac Catera uses a wide band O2 sensor.  This particular
>sensor needs a fairly sophisticated control loop to make it work though (I
>haven't worked with many others yet).  I've seen it done analog, a bosch unit
>we had in used opamps, but we decided to go digital.  We used a microcontroller
>to control the heater (it has to be the right temperature to be accurate),
>check the O2 level, and communicate with the A/F display (in our case, a PC).
>
>chad
>
Whose sensor does the Catera use?? I hear Grumpy starting to stir!

Greg


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