milage indicator

Jeroen Proveniers J.Proveniers at orga.nl
Thu Nov 23 13:16:39 GMT 2000


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> -----Original Message-----
> From: Brian Warburton [mailto:BrianWarburton at compuserve.com]
> Sent: Thursday, November 23, 2000 1:47 PM
> To: INTERNET:diy_efi at diy-efi.org
> Subject: milage indicator
> 
> 
> I spent 10 yers consulting to FoMoCo both here un the UK and  at
> NAAO/Detroit, and from what I remember (I left in '94), the 92 MY DOHC
> Sierra has a  output on the EEC-iv module which drives the 
> tripminder unit
> on the Ghia spec car. As the complete range of 2.0L Sierras 
> use the same
> EEC-iv unit, all models have the output, its just that some 
> models won't
> have the actual trip minder unit. You may want to use that 
> output instead
> as it would mean most of the work is done for you. It will be 
> a pulse train
> output where the number of pulse relates to the amount of 
> fuel used. I'll
> try to remember more details if it's of any use.

This is interesting, but there's no tripminder in the '92 Sierra's anymore,
at least in Holland. Maybe the UK built Sierra's had it.
I think a fudge factor is not needed. When I know the flowrate versus
fuelpressure (which is constant), I can fill it right into my computer. Just
like the number of pulses/km of the VSS.

JJ

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<TITLE>RE: milage indicator</TITLE>
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<P><FONT SIZE=3D2>&gt; -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>&gt; From: Brian Warburton [<A =
HREF=3D"mailto:BrianWarburton at compuserve.com">mailto:BrianWarburton at comp=
userve.com</A>]</FONT>
<BR><FONT SIZE=3D2>&gt; Sent: Thursday, November 23, 2000 1:47 =
PM</FONT>
<BR><FONT SIZE=3D2>&gt; To: INTERNET:diy_efi at diy-efi.org</FONT>
<BR><FONT SIZE=3D2>&gt; Subject: milage indicator</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; I spent 10 yers consulting to FoMoCo both here =
un the UK and&nbsp; at</FONT>
<BR><FONT SIZE=3D2>&gt; NAAO/Detroit, and from what I remember (I left =
in '94), the 92 MY DOHC</FONT>
<BR><FONT SIZE=3D2>&gt; Sierra has a&nbsp; output on the EEC-iv module =
which drives the </FONT>
<BR><FONT SIZE=3D2>&gt; tripminder unit</FONT>
<BR><FONT SIZE=3D2>&gt; on the Ghia spec car. As the complete range of =
2.0L Sierras </FONT>
<BR><FONT SIZE=3D2>&gt; use the same</FONT>
<BR><FONT SIZE=3D2>&gt; EEC-iv unit, all models have the output, its =
just that some </FONT>
<BR><FONT SIZE=3D2>&gt; models won't</FONT>
<BR><FONT SIZE=3D2>&gt; have the actual trip minder unit. You may want =
to use that </FONT>
<BR><FONT SIZE=3D2>&gt; output instead</FONT>
<BR><FONT SIZE=3D2>&gt; as it would mean most of the work is done for =
you. It will be </FONT>
<BR><FONT SIZE=3D2>&gt; a pulse train</FONT>
<BR><FONT SIZE=3D2>&gt; output where the number of pulse relates to the =
amount of </FONT>
<BR><FONT SIZE=3D2>&gt; fuel used. I'll</FONT>
<BR><FONT SIZE=3D2>&gt; try to remember more details if it's of any =
use.</FONT>
</P>

<P><FONT SIZE=3D2>This is interesting, but there's no tripminder in the =
'92 Sierra's anymore, at least in Holland. Maybe the UK built Sierra's =
had it.</FONT></P>

<P><FONT SIZE=3D2>I think a fudge factor is not needed. When I know the =
flowrate versus fuelpressure (which is constant), I can fill it right =
into my computer. Just like the number of pulses/km of the =
VSS.</FONT></P>

<P><FONT SIZE=3D2>JJ</FONT>
</P>

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