O2 sensor question

[Chad]

I don't know the exact engine, but it's on the 1999 model.  It's a Bosch
sensor, part # 0 258 006 065.  I can get the GM part number also if you want.

>Do you have an extact year, and engine?.
>Grumpy
>
>
>> 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
>>
>> >Haven't investigated sensors yet, I was hoping to find one that came with
>a
>> >spec so I could see what the output curve is, then read with an ADC and
>> >micro, display on a little LCD. Do you know of a low cost source for
>these
>> >wideband sensors?
>> >
>> >dave


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