SR20DET test pipe

[Probe Dude]

Just found some online information on how some ECU's bias the O2 sensor and
then just count the number of crossing about this bias.

Thanks for the info!  I didn't know that this was done!

Dave

>From: "Raymond A. Kawski" <sr20de@epix.net>
>To: Probe Dude <probedude@hotmail.com>
>CC: se-r@lists.deskmedia.com
>Subject: Re: SR20DET test pipe

>Yes but the ECU just monitors the voltage of the line
>it sends power to the Rear O2 on.  Adding a resistor, which the
>rear o2 is, to the line reduces the voltage.