Hi, Tracy.
After I sent this inquiry, I found on the internet that the four wires
should be heater power, heater ground, sensor ground, and sensor output.
I am not certain how to discover which is which with an ohm meter.  My
assumption is that the heater wires would ohm closed, and the sensor
ground might also be connected to these two, but probably not.
How would you suggest I test the four leads to discover the sensor and
sensor ground?
Thanks,
Bill

----- Original Message -----
From: Tracy Crook
Sent: Friday, October 06, 2006 8:02 PM
Subject: Re: [FlyRotary] Renesis O2 Sensor

It is probably an O2 sensor with a pre-heater (to get it up to
temperature quickly for emissions control).  If you can identify the
appropriate leads (should be easy with an ohm meter) you can use it.  No
need to use the pre-heater in our application.

Tracy

----- Original Message -----
From: Bill Bradburry
To: Rotary motors in aircraft
Sent: Friday, October 06, 2006 2:19 PM
Subject: [FlyRotary] Renesis O2 Sensor


My engine came with the O2 sensor installed.  I would naturally like to
use it because of the cost of sensors.  However, the instructions for
the EM-2 seem to require a one wire sensor which has the body grounded.
The renesis O2 sensor has 4 wires!  Black, Black, Blue, and White.
I have not been able to find out how these wires connect on the car, so
I have no idea how to hook it up with the EM-2 if that is even possible.

Does anyone have info??
Tracy, what say ye?
Just in case, the sensor is inscribed:

MCG
N3H2
Denso
04F12
-4211
Thanks,
Bill Bradburry