RE: Can an ECM "learn" how to start the car better?

[Squash <realsquash@yahoo.com>]

Mine did the same exact thing until I changed the idle BLM cell.  It ran very rich during warmup,
so much that it was undriveable.

Squash

--- trax <trax@frederickmd.com> wrote:
> Ok,
> 
> I'm going to play devil's advocate for the sake of learning.  Riddle me this
> batman :-) ...
> 
> If idle quality on a cold startup can change due to adaptive memory then why
> did my 730 ECM consistently show 128 BLM, 128 INT, and O2 volts in the upper
> 900s for my car?  Once the car hit closed loop the BLM shot down to 108, INT
> to 112, and the O2 volts then transitioned as normal to provide a good AFR.
> This was with my TPIS level V PROM.  The car never 'learned' how to subtract
> fuel from a cold startup while still in open loop.  However, once the car
> hit closed loop all was great.  I have since modified the chip in order to
> provide for better cold starting.
> 
> Tim
> 
> >      "Adaptive Memory"  does Learn Idle quality and "remembers what it
> >learned the last run time, unless the ECM  lost bat power and the learned
> >adjustments are cleared from memory. Then it will need to relearn, as I
> >understand the process. Although the Adaptive learning is somewhat
> >narrow in range , it helps some combinations run considerably better.
> >Part throttle "brisk" acceleration speeds up the learning process as
> >well .
> >
> >          Len
> >
> >
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=====
Trains, Trucks, and EFI at http://www.trailrunners4x4.org/users/realsquash

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