Looking for Steve Parkersons work.

[jacobss at greatoaks.com]

Hello all I am looking for work from a former list member named Steve
Parkerson.  It has been pointed out he is now passed onto the internal
combustion engine intake sky.  Darn I should have bought these years ago.

Any rate, I am looking for anybody who may have purchased any of his
manuals, my main interest is the VW conversion manuals.  If anybody has
these, I am looking for them to help me with a project, please drop me a
note.

Stephen Jacobs

-----Original Message-----
From: DIY_EFI-Digest-Owner at efi332.eng.ohio-state.edu
[mailto:DIY_EFI-Digest-Owner at efi332.eng.ohio-state.edu]
Sent: Wednesday, December 01, 1999 3:00 PM
To: DIY_EFI-Digest at efi332.eng.ohio-state.edu
Subject: DIY_EFI Digest V4 #669



DIY_EFI Digest       Wednesday, December 1 1999       Volume 04 : Number 669



In this issue:

	Basic electronic stuff
	Haltech data logging question?
	Sunbird wiring
	Grand Prix Turbo wiring diagrams

See the end of the digest for information on subscribing to the 
DIY_EFI or DIY_EFI-Digest mailing lists.

----------------------------------------------------------------------

Date: Wed, 1 Dec 1999 07:17:40 -0500 
From: "Posea, David G, SITS" <dposea at att.com>
Subject: Basic electronic stuff

Some of you may remember I am working on a boost retard device based on a
PIC controller for the Ford DIS ignition. I found a good trigger circuit
that goes to logic 1 when the EEC grounds the trigger wire for a coil. My
question is how do I handle the "open" state on the output side of the
controller? This is the negative side of the coil. If I attach it to an
output pin out on the PIC, won't I be feeding Vbat (+13V)into that same pin
from the coil side? Can I just set the output pin high until time to fire
the coil, then ground it? Or do I need to use the output as the input to a
transistor to switch the negative coil wire to ground?  Something seems
wrong here, and I'm not sure what it is. I'm a programmer by trade with
limited electronic knowlegde. Thanks in advance for any help.

David Posea

------------------------------

Date: Wed, 1 Dec 1999 10:50:00 EST
From: A70Duster at aol.com
Subject: Haltech data logging question?

I have a Haltech F3 series on a Chevy engine.  Works fine but I'm trying to 
view the saved data with the data logging feature.  

I believed the data is saved in a binary format, and I'm trying to get it 
into an Excel type of program.

Any help converting the file??

Thanks

Mike

------------------------------

Date: Wed, 01 Dec 1999 12:15:35 -0600
From: steve ravet <sravet at arm.com>
Subject: Sunbird wiring

> 
> Date: Tue, 30 Nov 1999 22:19:58 -0700
> From: cwagner at info2000.net
> Subject: Sunbird wiring
> 
> Does anyone have a wiring diagram for a 2.0 Sunbird using the
> 7749?  Need it for a conversion.  Also, does anyone have a list of
> where the data tables are located on the chip?

You're in luck, I just uploaded this yesterday from Bruce.  Sent a note
to GMECM I think, which is the better place to ask.

Anyway, go to the diy_efi WWW page, (efi332.eng.ohio-state.edu/diy_efi),
click on ftp site index, then scroll to the bottom for schematics.

As I understand it, this sunbird ECM is the same as syty, in which all
tables are known.  There's even a shareware program for it for editing
bins.  check www.syty.org or something like that.

- --steve


- -- 
Steve Ravet
steve.ravet at arm.com
Advanced Risc Machines, Inc.
www.arm.com

------------------------------

Date: Wed, 1 Dec 1999 12:08:26 -0700
From: cwagner at info2000.net
Subject: Grand Prix Turbo wiring diagrams

I earlier wrote about needing wiring diagrams for the Sunbird.  I 
goofed, I found them on the ftp area.  What I needed were from a 
89 or 90 turbo Grand Prix.  I understand that the computer used is 
a 7727 which is the sane as the 7730.  Does anyone know where 
the wires go on a 730 computer.  I don't have a 727 but I do have a 
730.

------------------------------

End of DIY_EFI Digest V4 #669
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