[Diy_efi] Info on Mopar SCI was Mopar PCM
Daniel Nicoson
A6intruder at adelphia.net
Tue Oct 26 21:17:23 GMT 2004
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Wally,
For a project like you are describing, why not use a stand-alone controller
that is made to be used for one-off projects like you have in mind? This
could save time rather than having to reverse-engineer an old OEM system
that may have limited support. It sounds like you would rather USE this
tracked vehicle than spend time learning what Mopar engineers designed 15
years ago.
I don't suggest this to discourage the spirit of this list, DIY-EFI, but as
an option to get you going sooner.
http://www.bgsoflex.com/megasquirt.html Megasquirt (DIY already figured
out)
http://www.sdsefi.com/ Simple Digital System (store bought)
These are two links that could get you full control of your engine very
quickly and not too expensively. You might even be able to drive the
existing throttle body fuel injector you noted with these controllers.
Just a couple more possibilities.
Good luck with the project.
Dan
From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
Behalf Of David Cooley
Sent: Tuesday, October 26, 2004 3:09 PM
To: diy_efi at diy-efi.org
Subject: Re: [Diy_efi] Info on Mopar SCI was Mopar PCM
So far, My only experience is on the 96 and newer OBD-II
controllers... they still use the SCI (or at least they call it SCI) on the
diag connector, for the OBD-II interface... it may support multiple
protocols, but it's running ISO 9141-2 for the OBD-II
-------Original Message-------
From: A list for Do-It-Yourself EFI
Date: 10/26/04 15:00:54
To: A list for Do-It-Yourself EFI
Subject: Re: [Diy_efi] Info on Mopar SCI was Mopar PCM
At 12:19 PM 26/10/04, you wrote:
> Hmm... I bet the ones with SCI LOL...
>I'm not sure, because SCI is normally done with just a MAX-232 to
convert to
>serial...
Hello Everyone in the group,
I am in the process of retrofitting a 1988 vintage 318 with
Throttle Body Injection into a Bombardier Tracked
vehicle called a " Muskeg ". We have been using this vehicle to log
with
and up till now had been using a Holley 2bbl
for carburetion. The big problem is that the vehicle sometimes has
to work
at an attitude close to 45 deg and when this
happens, the float sticks and the vehicle stalls.
With all of the recent discussion on Mopars, and with
the ECU
internals I was hoping that you folks might
be able to point me to where I can find info on the SCI interface /
protocol etc that would let one retrieve codes etc from the
diagnostic port.
I am aware that I can using the ' flashing light '
method and
I have saved this part of the wiring harness to use
for that purpose. But having a hobby in MicroControllers and such, I
would
like to cook up a device to read the codes
if I can. Up till joining this group, I have not been able to find
much in
the way of info on the pre-OBD controllers.
Any pointers are greatly appreciated.
Sincerely, Wally
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charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2900.2523" name=3DGENERATOR></HEAD>
<BODY=20
style=3D"BACKGROUND-POSITION: 0px 0px; FONT-SIZE: 12pt; MARGIN: 5px 10px =
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<DIV><SPAN class=3D545083320-26102004>Wally,</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004>For a project like you are =
describing, why=20
not use a stand-alone controller that is made to be used for one-off =
projects=20
like you have in mind? This could save time rather than having to=20
reverse-engineer an old OEM system that may have limited support. =
It=20
sounds like you would rather USE this tracked vehicle than spend time =
learning=20
what Mopar engineers designed 15 years ago.</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004>I don't suggest this to discourage =
the=20
spirit of this list, DIY</SPAN>-<SPAN class=3D545083320-26102004>EFI, =
but as an=20
option to get you going sooner.</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004><A=20
href=3D"http://www.bgsoflex.com/megasquirt.html">http://www.bgsoflex.com/=
megasquirt.html</A> =20
Megasquirt (DIY already figured out)</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004><A=20
href=3D"http://www.sdsefi.com/">http://www.sdsefi.com/</A> Simple =
Digital=20
System (store bought)</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004>These are two links that could get =
you full=20
control of your engine very quickly and not too expensively. You =
might=20
even be able to drive the existing throttle body fuel injector you noted =
with=20
these controllers.</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004>Just a couple more=20
possibilities.</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004>Good luck with the =
project.</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004>Dan</SPAN></DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004></SPAN> </DIV>
<DIV><SPAN class=3D545083320-26102004> </SPAN><FONT face=3DTahoma=20
size=3D2><B>From:</B> diy_efi-bounces at diy-efi.org=20
[mailto:diy_efi-bounces at diy-efi.org]<B>On Behalf Of </B>David=20
Cooley<BR><B>Sent:</B> Tuesday, October 26, 2004 3:09 PM<BR><B>To:</B>=20
diy_efi at diy-efi.org<BR><B>Subject:</B> Re: [Diy_efi] Info on Mopar SCI =
was Mopar=20
PCM<BR><BR></DIV></FONT>
<BLOCKQUOTE>
<TABLE id=3DINCREDIMAINTABLE cellSpacing=3D0 cellPadding=3D2 =
width=3D"100%"=20
border=3D0><TBODY>
<TR>
<TD id=3DINCREDITEXTREGION=20
style=3D"FONT-SIZE: 12pt; CURSOR: auto; FONT-FAMILY: Arial" =
width=3D"100%">
<DIV>So far, My only experience is on the 96 and newer OBD-II=20
controllers... they still use the SCI (or at least they call it =
SCI) on=20
the diag connector, for the OBD-II interface... it may =
support=20
multiple protocols, but it's running ISO 9141-2 for the =
OBD-II</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV id=3DIncrediOriginalMessage><I>-------Original=20
Message-------</I></DIV>
<DIV> </DIV>
<DIV id=3Dreceivestrings>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>From:</B></I> <A=20
href=3D"mailto:diy_efi at diy-efi.org">A list for Do-It-Yourself=20
EFI</A></DIV>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>Date:</B></I> =
10/26/04=20
15:00:54</DIV>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>To:</B></I> <A=20
href=3D"mailto:diy_efi at diy-efi.org">A list for Do-It-Yourself=20
EFI</A></DIV>
<DIV dir=3Dltr style=3D"FONT-SIZE: 11pt" <i><B>Subject:</B></I> =
Re:=20
[Diy_efi] Info on Mopar SCI was Mopar PCM</DIV></DIV>
<DIV> </DIV>
<DIV>At 12:19 PM 26/10/04, you wrote:</DIV>
<DIV> </DIV>
<DIV>> Hmm... I bet the ones with SCI LOL...</DIV>
<DIV>>I'm not sure, because SCI is normally done with just a =
MAX-232=20
to convert to</DIV>
<DIV>>serial...</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Hello Everyone in the group,</DIV>
<DIV> </DIV>
<DIV> I am in =
the=20
process of retrofitting a 1988 vintage 318 with</DIV>
<DIV>Throttle Body Injection into a Bombardier Tracked</DIV>
<DIV>vehicle called a " Muskeg ". We have been using this =
vehicle to log=20
with</DIV>
<DIV>and up till now had been using a Holley 2bbl</DIV>
<DIV>for carburetion. The big problem is that the vehicle =
sometimes has=20
to work</DIV>
<DIV>at an attitude close to 45 deg and when this</DIV>
<DIV>happens, the float sticks and the vehicle stalls.</DIV>
<DIV> </DIV>
=
<DIV> &n=
bsp;With=20
all of the recent discussion on Mopars, and with the ECU</DIV>
<DIV>internals I was hoping that you folks might</DIV>
<DIV>be able to point me to where I can find info on =
the SCI=20
interface /</DIV>
<DIV>protocol etc that would let one retrieve codes etc from =
the</DIV>
<DIV>diagnostic port.</DIV>
=
<DIV> &n=
bsp;=20
I am aware that I can using the ' flashing light ' method =
and</DIV>
<DIV>I have saved this part of the wiring harness to use</DIV>
<DIV>for that purpose. But having a hobby in MicroControllers =
and such,=20
I would</DIV>
<DIV>like to cook up a device to read the codes</DIV>
<DIV>if I can. Up till joining this group, I have not =
been=20
able to find much in</DIV>
<DIV>the way of info on the pre-OBD controllers.</DIV>
<DIV> </DIV>
<DIV>Any pointers are greatly appreciated.</DIV>
<DIV> </DIV>
<DIV>Sincerely, Wally</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV></TD></TR>
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