Date:         Sat, 11 Dec 1999 22:08:40 -0800
Reply-To:     Antaki <wrack@HOME.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Antaki <wrack@HOME.COM>
Subject:      Re: OXY sensor Help!!
Comments: To: Erik Feddersen <revtek@GREENNET.NET>
In-Reply-To:  <3852AF19.BBCE14BC@greennet.net>
Content-Type: text/plain; charset="iso-8859-1"

The Oxy sensor is heated, and the two white wires connect to the heating
circuit; it does not seem to matter which way they are wired. One of them is
supplied from the Fuel Relay Pump, and the other goes to ground.

The black wire is the signal wire, and goes to the Digifart, er, Digifant,
Control Unit. The Oxy sensor grounds to the exhaust system, I believe. I am
not sure how rust and corrosion are supposed to do the job, but I don't
think there is any connection between the heater wires and the Lambda
sensor.
If anyone knows otherwise, please send the correct information.

Cut the wires off of the old sensor so as to make it easy to graft onto the
new one via solder and heat-shrink tubing, available at better stores
everywhere. One of those butane mini-soldering irons works great. Use
electrical solder, so the wires don't corrode from over-agressive flux, over
time. You will want to replace the ty-wraps so things look professional,
avoids excess examination during a smog-check.

Use anti-sieze on the threads but do not get it on the sensor surface.


Ron Antaki


> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM]On Behalf
> Of Erik Feddersen
> Sent: Saturday, December 11, 1999 12:08 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: OXY sensor Help!!
>
>
> Hi,
>
> Just bought an 87 vanagon.  Bought an oxy sensor, was told to cut off
> existing alien connector and splice the sensor into the existing line.
>
> Hmm, its a 3 wire, 2 whites and a black. No way to ohm out which white
> is white, does it matter when I connect them?
>
> I also noticed that the connector to the black wire (ground?) at the
> other end of the wire was bad (rotted away inside the rubber sleeve).
>
> I wanted to solder the wires but the original wires won't take solder
> although the oxy sensor side will.  Question, can I rewire it all myself
> using new wire?  Is there a special type if wire to use. It looks like
> 16 - 18 gauge wire.
>
> Your comments direct or to the list appreciated.
>
> Happy Holidays,
>
> Erik
>