fuel flow sensing

[Lawrence S. Harris III]

> Maybe some kind soul could help out this old fossil and suggest some
> suitable "donor" car models/years and where the sensor would be found,
> roughly (and please don't just say, "in the fuel line, you dummy", cause
> I can figure THAT out, heh).

I'm sure that most manufacturers do this like Ford does.  There is no 
actual sensor in the fuel system.  The fuel consumption can be derrived 
by the on time of the injectors.  The computer then sends this signal to 
the trip computer in the form of a PWM signal.  In a Ford Computer this 
is done on a line labeled DOL (Data output link).  The computer also has 
an input from the VSS (Vehicle Speed Sensor) and can thus calculate MPG.

Larry Harris  lharris at crl.com  (770)682-8842 (voice)
'86 Mustang LX 5.8 Coupe (169K) 
'82 BMW 635CSi Euro (131K)       '76 BMW 2002 EFI Project, RUNNING!
Meyers Tow'd Dune Buggy (1776cc) '83 Toyota Tercel SR-5 (214K)