O2 O 2 Sensor info solder splice joint

[Dave K.]

You have got to be kidding me...

Dave K.
'90 CQ

----- Original Message -----
From: "Suffolk GameServer LAN" <suffolk.associates at verizon.net>
To: <SuffolkD at aol.com>
Cc: <quattro at audifans.com>
Sent: Thursday, December 19, 2002 11:34 PM
Subject: FW: O2 O 2 Sensor info solder splice joint


> Message: 13
>    Date: Sat, 14 Dec 2002 17:11:58 -0800
>    From: "toolphile" <toolphile at hotmail.com>
> Subject: Re: Solder electrical connections.
>
> IMPORTANT NOTE:
>
> IF your O2 sensor is the style with the ribbed black hard plastic
sheathing
> at the SENSOR end of the harness, splicing either with either a mechanical
> joint or chemical joint WILL NOT WORK.
>
> ALL O2 sensors must have a way of sampling the ambient air and comparing
it
> with the air inside the exhaust manifold. For a long time, engineers
simply
> left a small opening at the top of the sensor (near where the wires come
> out) for sampling ambient air.
>
> The NEW O2 sensors (with the sealed sheath) no longer sample ambient air
at
> the sensor. They actually get a fresh air sample from the INSIDE of the
ECM.
> How? They actually draw a sample of fresh air from inside the ECM THROUGH
> the wires going to the sensor, INSIDE the insulation covering the wrapped
> wire strands. This sample must get through the O2 sensor connector (under
> the hood) without being contaminated.
>
> This is why Stabilent 22A, nor any other 'electrical connector enhancers'
> are to be used on these connections. Just as well, Making air tight crimp
> connections that allowed correct air flow would be very difficult, and a
> soldier connection would obviously block sampling.
>
> Unfortunately, the only workable repair FOR THESE SENSORS, is a NEW
HARNESS.
>
> :)~
> toolphile
>
>
> ----- Original Message -----
> From: "Donald Gibbons" <gibbonsnc at yahoo.com>
> To: <VAG-COM at yahoogroups.com>
>
>