[Diy_efi] Newbie with a simplified Motronic project

[arnie]

Adam, didn't say anything about hating/disliking anything.  Are we reading
the same post?  What was said was, without O2 input, there is no pcm
changes/corrections.  Without O2s, there is no closed loop.  The O2s are
needed, not 'hated'.  :)  And how did making more (or less) power enter in?
The issue is, or at least was, passing emissions, hence, the MAF system.

----- Original Message -----
From: "Adam Wade" <espresso_doppio at yahoo.com>
To: <diy_efi at diy-efi.org>
Sent: Monday, October 28, 2002 11:06 AM
Subject: Re: [Diy_efi] Newbie with a simplified Motronic project


> --- arnie <arnie_ at charter.net> wrote:
>
> > The point/intent of the MAF being self compensating
> > is to CONTINUE, hopefully for the practical life of
> > the vehicle, to meet the EPA specs the vehicle was
> > originally built to, WITHOUT outside, meaning
> > manual/hands on, input/adjustment.  It would then
> > become apparent we are talking closed loop, which
> > uses the O2 sensor input to maintain correct A/F
> > ratio.  Without the O2 sensor input, how else to
> > monitor and self compensate accordingly?
>
> Huh?  I'm confused.  You start off saying that the MAF
> does a great job insuring that changes in VE are
> accounted for, and then go on to say that we HATE to
> have an O2 sensor, or we can't account for changes in
> VE.
>
> Which is it?
>
> I'll step forward and say it's the former.  A
> MAF-based open-loop system can make quite good power
> for the life of a vehicle without any outside intervention.
>
 | Adam Wade


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