[Diy_efi] WBO2 and AFR

[Tim Marsteiner]

Oh! I  know, I know!

As you retard ignition the AFR reading gets leaner! If
you tune with retarded ignition you will end up being
rich. This is not insignificant! At a several cells in
a map I was creating, just a few degrees of ignition
changed the AFR several percent. 

Tim
 
--- Adam Wade <espresso_doppio at yahoo.com> wrote:

> Incidentally, no one responded to my query from the
> other day.  So I'll ask again; anyone know what
> happens to a WBO2 (or other measurement of residual
> oxygen in the exhaust) when you take an engine
> operating at steady state and retard the ignition
> timing a good bit?  The answer to this question
> actually ends up raising significant questions about
> the relative importance of precision calibration in
> a WBO2...
> 
> | 82 Honda CX500 Turbo (Cassandra)  90 Kwak Zephyr
> 550 (Daphne) |
> | "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     |
> | M/C Fuel Inj. Hndbk. @ Amazon.com - 
> http://tinyurl.com/6o3ze |
> 
> 
> 		
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