WB, NB, and broken pistons

[Len Sabatine]

     I was thinking of defaulting to the stock NB Sys as a  backup
     if WB used in vehicle ,  should WB Sys Fail.
     Can't see any reason for NB to be checking the WB sys tho.
     Hope I was being clear.
     Len

>If we can trust the NB to double check the WB, then why the WB?
>
>BobR.
>
>
>bcroe at juno.com wrote:
>
> > That sounds like practical development work to me.  Keep
> > that NB sensor running.  At WOT the NB is not allowed to
> > go to lean, no matter what the WB unit says.  You might
> > loose power, but not parts for a WB failure.
> >
> > Bruce Roe
> >
> > On Sat, 25 Aug 2001 11:50:30 -0400 Len Sabatine <sabatine at epix.net>
> > writes:
> > >     BobR , as usual, you've got your ducks in line.
> > >     Maybe a work around to avoid crispy piston decks , would be the
> > > development
> > >     of a WB "look alike" input to the PCM's O2 channel [s] , with
> > > necessary
> > > program
> > >     code that would default to normal NB monitoring and control.
> > > MAYBE this
> > > could
> > >     be useful to avoid catastrophic engine damage in the event of
> > > the WB
> > > ckt/ sensor
> > >     failure , assuming the WB is the primary monitor in use.
> > >     This isn't a trivial endeavor.
> > >     Len
> > 
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