Some theories

[Bruce Plecan]

-----Original Message-----
From: peter paul fenske <ffnsp955 at bcit.bc.ca>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, August 29, 1998 2:09 AM
Subject: Re: Some theories


Geez, almost enough to make me go back to lurking, naa, I'd
miss all the fun thata way.  Almost blinding from all the little
flash bulbs going off over this one.
Cheers--Thanks Peter
Bruce


>Not really
>BARO - MAP = VACUM
>With MAF well MAP * Cyl vol * INVTemp * RPM = MAF.
>or PV=RNT
>ECMS don't measure these parms. THEY CALCULATE EM
>:peter
>
his whole topic about the O2 has me thinking about something I
>>saw.  That the egr calculations are done against vacuum.  How can that be,
since it's just MAP that's measured.   Then this item about the WOT, and the
in car driving down the road barometric pressure recalculation.  Pay real
close attention when driving a 747 and at slightly more than a little
accleration, say just enough to extend the shift to over 4000 rpm you can
feel it happen,  least I think that when it happens.
>>
>>Cheers
>>Bruce
>>
>>
>>
>
>