[Diy_efi] Making a fake O2

[David Cooley]

Huh??
Once the criteria are met for closed loop, unless you are in decel fuel
cutoff or WOT, it IS in closed loop.
And Most cals use the correction in the lonmg term fuel trim to ADD fuel to
the WOT fuel... If you never go closed loop, you never learn a correction
and can too easily lean out and smoke the engine.
 

> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org 
> [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of Adam Wade
> Sent: Saturday, May 28, 2005 5:15 PM
> To: diy_efi at diy-efi.org
> Subject: RE: [Diy_efi] Making a fake O2
> 
> --- Joe Boucher <boucherj at prodigy.net> wrote:
> 
> > Yes, after some engineering teams spent a bunch of time 
> setting up the 
> > motorcycle EFI systems.
> 
> This is true of any EFI system, open- or closed-loop. 
> Keep in mind that except for lean cruise and (on some some 
> ECUs) idle, the ECU never goes into closed-loop mode.  
> Open-loop fuel maps and all spark maps would need development 
> by someone through trial and error (dyno runs, actual driving, etc.)
> 
> > If Marcelo is doing a custom setup then he will need to 
> spend sometime 
> > doing the proper tuning for a open loop system.
> 
> This is true as well, but I gather he already knows that.
> 
> | 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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