Idle went haywire last night, possibly the o2? 84 4kq

[Tony Hoffman]

I've seen them anywhere from 0V (ground) to 5V. Thankfully, the
circuitry, at least on the older cars, can handle up to 12V. Though
anything over 1V is read as the same as 1V. Only 0-1V is useful for
the ECU, IOW.

Tony


On Tue, Dec 7, 2010 at 8:49 AM, Andrew Dickinson <amdickinson at rogers.com> wrote:
> One small note:  I have had a failed O2 sensor read steady nearer 2V (about
> 1.75V iirc)