Dennis,
I forgot to mention that I had to restore the threads in the O2 bung with a
thread chaser ( if my memory holds, I used a spark plug thread chaser )
after removing the sensor. I've done this a couple times and it has worked
out each time and I was able to reuse the O2 sensor with no problem.
Rick

On Fri, Oct 2, 2015 at 9:43 AM, Richard Koller <brvkoller@gmail.com> wrote:

> Dennis,
> I had this same problem and I heated the cat at the junction where the O2
> sensor screws in with MAPP gas. Then quickly slipped my 22mm box end over
> the disconnected sensor wires and was able to break it free. It would be
> better as others have said to use the dedicated O2 sensor socket. Heat was
> essential however in my case.
> Good luck.
> Rick Koller
>
> On Thu, Oct 1, 2015 at 12:37 PM, Dennis Jowell <dennisjowell@gmail.com>
> wrote:
>
>> I just started to replace my O2 sensor on my 2.2 wbx. No,luck using my
>> wrenches . Everything is rusted together. The catalytic converter is only
>> about a year old. Is there a better way to remove the sensor? Should I use
>> my touch to heat the sensor ? Any ideas would be great. I might get to
>> Quebec yet just have to get this done.
>>
>> Regards,
>> Dennis
>>
>> Dennis Jowell
>> Scotch Hollow Farm
>> Newbury, Vermont
>>
>
>