Re: Can a header collector leak make the o2 readings innacurate?

[Len Sabatine <sabatine@epix.net>]

At 10:22 PM 6/12/00 -0500, you wrote:


> On Mon, 12 Jun 2000, Gerald Pelnar wrote:
>
> > >       If the O2 is "reading" the additional oxygen in the
> > exh sys , it is
> > > very possible
> > > the ECM will correct for this condition.
> >
> > You'll have to explain to me how the ECM can correct
> > for this. As I see it, the ECM will see o2 and increase
> > the fuel. Still seeing o2.  Hmm, more fuel. Hmmm still
> > o2. PIG RICH! Hmmm o2 sensor must be bad, set code,
> > LIMP IN!
> >
> > Doesn't seem to be much of a correction.
>
> I think what he is saying is that the PCM will attempt to correct for
> what it sees as a problem, which will only make things worse.
>
> Seeing the "correction" is a big clue that there is a leak.
>
>
>                                 Roger
>         Amen ,Roger !

  Len

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