Greg,
Like Frank said their life all depends on how they were treated. Is this the
same 02 that was
on the motor that overheated? That may have destroyed it. If the replacement
motor was
oil fogged for storage that might have killed it. Boston Bob told me that
when you first install
a rebuild try and run without an O2 for the first 100 miles or so because
the lubes from
the rebuild could kill  a new sensor. Double check all the wiring going to
the sensor
and make sure that the outer layer of the coax the shielding isn't touching
the middle wire
anywhere. I have already sold both of the sensors I had or would have sent
you one. I
may have another good used one around. I will check today. If I do I pmail
you back
for your address (I may have it if hasn't changed in a couple years). Either
way
you hear back yeay or neah....

Bill

On Mon, Oct 19, 2009 at 7:32 AM, Greg Potts <greg@pottsfamily.ca> wrote:

> Hi Frank,
>
> The setup I am running is now back to basically stock 1.9 setup, except
> the muffler is now hung off the engine with a modified 2.1 hanger
> bracket. The O2 sensor is in the cat as usual.
>
> I am going to drive it for a tank or two as-is and see what the milage
> works out to. If it's not too bad I'll leave well enough alone. The
> powerband is so much smoother now...
>
> BTW, (re?)send me the bill for the golf muffler and coolant temp sensor...
>
> Greg
>
>
> Frank Condelli wrote:
>
>> In a message dated 19/10/2009 12:01:55 A.M. Eastern Daylight Time,
>> LISTSERV@GERRY.VANAGON.COM writes:
>>
>>            That  all depends on many things.  If that engine has been
>> running way to rich  for some reason then the OXY sensor could have been
>> toasted
>> by that.   Installing a new OXY sensor is the only solution to this
>> dilemma.  Where is  the OXY sensor placed in that un-original set-up you
>> have ?
>> The best  placement by far is in the CAT as was original in the real 2.1
>> set
>> up.
>>
>>
>>
>>   What's the life expectancy of an O2 sensor? This  one might have 20,000
>>>>>>
>>>>> miles on  it.<<<<<
>>
>>
>>
>>
>>
>> Cheers,
>>
>> Frank  Condelli
>> Almonte, Ontario, Canada
>> '87 Westy & Lionel Trains (_Collection for sale_
>> (http://frankcondelli.com/trainsal.htm) )
>> _Frank Condelli &  Associates_ (http://frankcondelli.com/busindex.html)
>>  -
>> Vanagon/Vanagon Westfalia Service in the Ottawa Valley
>> _Vanagon Stainless Steel Exhaust  Systems_
>> (http://frankcondelli.com/exhaust.htm)
>> _BusFusion_ (http://www.busfusion.com/)  a VW Camper  camping event,
>> Almonte, ON, June 11 ~ 14,  2009
>>
>>
>
> --
>
> Happy Trails,
>
> Greg Potts
> 1973/74/79 Westfakia "Bob the Tomato"
> 1987 Wolfsburg Weekender Hardtop
> www.busesofthecorn.com
> www.pottsfamily.ca
>