O2 O 2 Sensor info solder splice joint

[Mark Friedel]

Oh, come on.  A sensor that has to sample the exhaust rapidly (that's
what the usual failure mode is, not reacting quickly enough) is going
to breathe fresh air THROUGH the wire?  Quickly?  Have you been in
contact with someone from Nigeria?  (scam central these days)

Even if it does breathe through the wire -- how the does it matter
where the source of fresh air is.  If it sucks air from the original
crimped on end, or from the crimped on splice.  It's never going to
come from the ECU as originally posted, there's a connector on the
firewall that is nowhere near the ECU.  Next thing you're going to tell
us is that it's timing is calibrated to the length of wire from the
factory.  ;-)

On Friday, December 20, 2002, at 07:13 AM, David Head wrote:

> --
> [ Picked text/plain from multipart/alternative ]
> You guys are so easy its frightening... A very well written crock of
> sh_t...
>
> Dave K. wrote:
>
>> Sorry, I believe it but that is amazing!!!
>>
>> Dave K.
>>
>> ----- Original Message -----
>> From: "Mike Robinson" <quattrofan at sbcglobal.net>
>> To: "Dave K." <desmo888 at comcast.net>; "Suffolk GameServer LAN"
>> <suffolk.associates at verizon.net>; <SuffolkD at aol.com>
>> Cc: <quattro at audifans.com>
>> Sent: Friday, December 20, 2002 12:06 AM
>> Subject: Re: O2 O 2 Sensor info solder splice joint
>>
>>
>>
>>
>>> Dave,
>>> 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.
>>>>>
>>>>> 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>
>>>>>
>>>>>
>>>>>
>>>>>
>>>
>>>
>>
>>
>>
>>
>>
>
> --
>