Baro check

[Ward]

Yes you can and do get baro updated while running, the algo has strict
requirements for range that baro can be cal'ced in tho.

If you look at the baro corrections you will se they are not  very fine
grain, they have a second order effect on the resulting air flow
calculations,

Ward

Late PCM have provivions for an on board baro sensor, 

On Thu, 25 Mar 1999 15:27:21 EST, ECMnut at aol.com wrote:

> In a message dated 3/25/99 2:51:37 PM Eastern Standard Time,
dzug at delanet.com
> writes:
> > ts interesting to note here that in my 7727 app, if you DO live in 
> >  mountainous terrrain, your BARO correction will be set at KEY ON 
> >  time, and never re-set until you start the car again. if you're going 
> >  up a BIIG mountain, you're over rich at the top, right? until the BLM 
> >  corrects I guess. My point is that they re-use the MAP to get a BARO 
> >  reading and therefore cannot ever re-check baro cause theres a 
> >  running car attatched to the map. I wonder if this is common?
> 
> Hi Dave, 
>  I was reading in a Mopar EFI training book, that the MAP sensor
> is referenced to get a BARO reading when you are at WOT...
> This seems a little error proned to me, but that is what the
> book says. That way, you can drive from 1000 ft elev to 10,000 ft
> and it will not require a "key on" sequence to correct things.
> Makes you wonder if a dirty air filter could ruin your day.
> MV





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