idea..

[George M. Dailey]

My thoughts exactly! Since the fuel pressure differential, across an
injector, in a port injection application remains constant. The mathmatics
seems really simple. Imagine a Basic Stamp getting a signal off of an
injector and displaying instantanious MPG  readings as you drive. Cheap and
very accurate, in theory.

GMD


At 09:47 PM 10/6/97 -0400, you wrote:
>
>someone mentioned trying to locate fuel flow meter to use for a mileage
>calculator.  Why not have the ecu record the combined pulse width over a
>period of distance, based on the assumption that fuel pressure remains
>fairly constant, a certain distance traveled divided by the time the
>injectors are open == MPG. All is needed is a pulse input from oneor more
>of the wheels,  each pulse = a certain distance ,and the frequency is the
>speed.  The functions necessary to do the computation should be fairly
>easy to develop,  anyone wanna try it ??
>
>Dave J. Andruczyk
>
>
>
>
George M. Dailey
gmd at tecinfo.com