The check engine light code was PO-131 which is 0-2 Bank 1 Senor 1...
does this help?

TeGGeR® wrote:
> Jim Yanik <jyanik@abuse.gov> wrote in
> news:Xns9848C1F781787jyanikkuanet@129.250.170.86:
>
> > "TeGGeR®" <tegger@tegger.c0m> wrote in
> > news:Xns9848BE6E0916tegger@207.14.116.130:
> >
> >
> >>
> >> Do you know the EXACT alphanumeric numeric code that was recorded?
> >> This is critical. Most O2 sensor failures these days have to do with
> >> the heater circuit.
> >
> > I wonder why the O2 sensor needs a heater? It's already in the hot
> > exhaust. Perhaps to get the sensor up to operating temp quicker? (to
> > shorten the open loop time)
>
>
>
> The heater is intended not only to ensure fast warmup, but to make
> certain the O2 sensor always remains above 750F.
>
> The oxygen sensor needs to be at 750F to be fully operational. Even
> though combustion chamber temperatures are about 2,100F, it is possible
> under certain circumstances for the exhaust temperature to drop below
> 750F by the time it reaches the sensor. This would result in degraded
> performance and increased emissions.
>
> In addition, EPA regulations force the newest cars to use a variant of
> the oxygen sensor called an "air-fuel ratio sensor". This particular
> design requires to be at 1,500F before it is fully functional, and that
> temperature is impossible to maintain without a heater.
>
>
>
> --
> TeGGeR®
>
> The Unofficial Honda/Acura FAQ
> www.tegger.com/hondafaq/