[Diy_efi] changing wbo2 reading via timing

[Shannen Durphey]

Lol.  

The four gas provides a frame of reference for the oxygen levels based on
the concentrations of HC and CO in the exhaust.  It's more useful with less
work than the O2 sensor by itself.  Average oxygen concentration alone
won't show the differences between excessively rich, excessively lean, and
stalled.  So I gave an HC level as a reference.  By the time the mixture
gets rich beyond the sensor's range, the HC's stink.  You don't _need_ to
have an expensive analyzer to notice that.  And I showed that I could use
my equipment by itself to detect one of the 3 conditions, stalled.  And I
mentioned that the O2 levels and the readings they represent on some of the
available equipment I've used _is_ averaged, that it's possible to get more
information from the sensor than what's provided by the WB display.

While you're busy telling the local car club how much better a purpose
designed car is for a specific job, I'm saying that there are ways to get
more out of the cars they have, and that there are tradeoffs to be aware of
no matter what type of ride they choose.  

Shannen

Adam Wade wrote:
> 
> --- Dave Dahlgren <ddahlgren at snet.net> wrote:
> 
> > Not to pick on you but I can hear two of thse events
> > pretty easy..
> 
> Ahh, I didn't say they were undetectable, or even HARD
> to detect...  I was just illustrating a point for our
> friend there.  ;)
> 
> If tuning required a lot of black boxes for it to EVER
> happen, we'd never have been able to tune before the
> black boxes got here.
> 
> The idea of any tool is to make our jobs easier.
> Choose the best tool for the job, given your goals and
> limitations.  Everything else becomes an academic exercise.
> 
> =====
> | Adam Wade                       1990 Kwak Zephyr 550 (Daphne) |
> |   http://y42.photos.yahoo.com/bc/espresso_doppio/lst?.dir=/   |
> | "It was like an emergency ward after a great catastrophe; it  |
> |   didn't matter what race or class the victims belonged to.   |
> |  They were all given the same miracle drug, which was coffee. |
> |   The catastrophe in this case, of course, was that the sun   |
> |     had come up again."                    -Kurt Vonnegut     |
> 
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