[Diy_efi] fuel injection for an airplane engine

[Bruce]

----- Original Message -----
From: "Eric Fahlgren" <eric.fahlgren at mscsoftware.com>
> > On a upnote, by using a MAP
> > sensor it is capable of sensing pressure changes
> > but I have even heard of cars needing to be
> > Turned off (ack not in the air!) while climbing
> > to high elevations due to running crappy.  I
> > should've though of that ealier...  I really

> Yes, that's a problem when the barometric correction factor is
> sampled at engine startup (usually because there is only one
> MAP sensor), then remains constant as long as the ECU isn't
> rebooted.  To get around this, put in another MAP sensor
> and sample it all the time for the current baro factor.

That's not universally true.  On some GMs they do a recalc under certain
circumstances, ie, to corrrect for climbing a mountain, etc..
Bruce


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