[Diy_efi] New TBI install in older car
Frank McCracken
frankmccracken at shaw.ca
Tue Jan 18 12:29:49 GMT 2005
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Well, The god damn thing runs. Thats the best. Runs smooth with great =
throttle responce. Gotta wait for the snow to go away now to take r' for =
a spin. Now the tuning begins.......
J and Chris.....F-press adjustable 15lbs on the guage. Ford truck fuel =
pump, frame mounted right underneath the tank. Lots of gravity feed.
Thanks for you input everyone, wouldn't have been able to solve that =
B1/C16 power input wiring thing without ya.
Thanks, Frank.
----- Original Message -----=20
From: J=20
To: A list for Do-It-Yourself EFI=20
Sent: Sunday, January 16, 2005 9:59 PM
Subject: Re: [Diy_efi] New TBI install in older car
Spark but no fuel spray....recheck fuel pressure. Make sure it's fuel =
and not air in the lines. IIRC, some of the frame-mounted Ford pumps =
are meant to be strictly booster-pumps, and won't create enough suction =
to actually draw fuel out of the tank. The full-size vans and some =
trucks actually had 2 pumps, one in the tank to provide volume and one =
on the frame to provide pressure.
If fuel pressure is good, check for injector pulses. You'll need a =
'noid light or LED because a regular test light won't turn on/off fast =
enough to see the pulses. A DVOM will also react too slowly, although =
an analog meter may work. If you have no injector pulse, check the =
injector ground pulse signal at the ECM. If that's no good, check the =
tach pulse signal from the dizzy to the ECM. This will be a =
ground-pulse signal just like the injector pulse.
If none of that turns anything up, let us know.
-J
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Well, The god damn thing =
runs. Thats the best.=20
Runs smooth with great throttle responce. Gotta wait for the snow to go =
away now=20
to take r' for a spin. Now the tuning begins.......</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>J and Chris.....F-press adjustable =
15lbs on the=20
guage. Ford truck fuel pump, frame mounted right underneath the tank. =
Lots of=20
gravity feed.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Thanks for you input everyone, wouldn't =
have been=20
able to solve that B1/C16 power input wiring thing without =
ya.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Thanks, Frank.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3DTheGreatJ at charter.net =
href=3D"mailto:TheGreatJ at charter.net">J</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Ddiy_efi at diy-efi.org=20
href=3D"mailto:diy_efi at diy-efi.org">A list for Do-It-Yourself EFI</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Sunday, January 16, 2005 =
9:59=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [Diy_efi] New TBI =
install in=20
older car</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D2>Spark but no fuel spray....recheck =
fuel=20
pressure. Make sure it's fuel and not air in the lines. =
IIRC, some=20
of the frame-mounted Ford pumps are meant to be strictly =
booster-pumps, and=20
won't create enough suction to actually draw fuel out of the =
tank. The=20
full-size vans and some trucks actually had 2 pumps, one in the tank =
to=20
provide volume and one on the frame to provide pressure.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>If fuel pressure is good, check for =
injector=20
pulses. You'll need a 'noid light or LED because a regular test =
light=20
won't turn on/off fast enough to see the pulses. A DVOM will =
also react=20
too slowly, although an analog meter may work. If you have no =
injector=20
pulse, check the injector ground pulse signal at the =
ECM. If=20
that's no good, check the tach pulse signal from the dizzy to the =
ECM. This will be a ground-pulse signal just like the injector=20
pulse.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>If none of that turns anything up, =
let us=20
know.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>-J</FONT></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>diy_efi =
mailing=20
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