O2 sensor Voltage

[clayb]

"Mike (Perth, Western Australia)" wrote:

> Correct me if I'm wrong (can't recall rich/lean direction) but if the
> output voltage goes low(er) to indicate richer, then all you need is
> a voltage divider or even (if the o/p impedance of the sensor is high)
> a series resistor.

You can get burned with the voltage divider approach. Better to use an op-amp
buffer. Cheap, accurate, and true offset or gains adjustments without non-linear
voltage divider effects.

- Clay

----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org