MAP vs MAF, again

[TBK]

You want a system using a MAP (manifold absolute pressure sensor - this is
speed density), not a MAFS (mass air flow sensor).

Remember, some systems that use a MASS sensor, also have a MAP for backup or
to measure the barometric pressure (altitude).

TK
-----Original Message-----
From: bamcknig at postoffice.syspac.com <bamcknig at postoffice.syspac.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Monday, April 20, 1998 10:55 PM
Subject: Re: MAP vs MAF, again


>Bruce
>
>I need a Map, not an MAP..
>I am lost.  MAF is a MASS AIR FLOW sensor.  usually a hot wire or
>plate type?  MAP is a Manifold Air Pressure sensor?  What measures
>Atmospheric pressure(in a boat its a barometer)?  How do I get
>Speed -Density?  One or two sensors?
>
>Bob McKnight
>Phx AZ
>                                    PS-
>These alphabets get me.  At tax time I find myself putting a 1040 in
>my independent rear supension(IRS) and sending a 4:11 to the internal
>revenue system(IRS).  My USB(universal serial bus) won't plug into my
>USB(upper Side Band) ham radio set.  Although I hear if I buy a new
>transceiver I will be able to plug my USB into my USB.  Between the
>Hieroglyphics on my computer screen and  the alphonics of the
>Technical publications, I am losing what little command of the
>english language I had.
>