[Diy_efi] wide band O2's

[Adam Wade]

--- gary <gas- at charter.net> wrote:

> As I understand it, WB controller (analog) circuitry
> that relies on a sensor calibration resistor without
> manual calibration, does not allow for sensor
> outputs as they drift over time/use.

Why would output drift over time, assuming a given
temperature of operation?

> The sensors drift, but the calibration resistor
> stays the same.  I question the accuracy over
> time/use.

Again, though, you have to have something to calibrate
it with.  What would you use to calibrate a sensor?

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