O2 O 2 Sensor info solder splice joint

Mike Robinson quattrofan at sbcglobal.net
Thu Dec 19 21:06:52 EST 2002

He is correct!  I ordered a new O2 sensor from TPC yesterday and Rod asked
me which one I wanted.  The price difference is only 20 bux too.  I couldn't
believe it either when he told me you had to do that!

-Mike Robinson
88 90q

On 12/19/02 8:48 PM, "Dave K." <desmo888 at comcast.net> wrote:

> 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.
>> 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
>> :)~
>> toolphile
>> ----- Original Message -----
>> From: "Donald Gibbons" <gibbonsnc at yahoo.com>
>> To: <VAG-COM at yahoogroups.com>

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