?s about EFI conversion using GM ECM

[TBK]

With a 730, the VSS is a must. Oh, it will run, but there are speed
dependent things in the code. Having the VSS connected on a 730 makes a
world of difference. Is this a manual or auto application? Yes, you can run
without a VSS, but once you put one in, you wonder how you lived without it.

The "etc", I don't know.

You will need:

MAP (Mass air flow won't work on a HEI system. It is for a DIS system only
on the 6 cyl.)
TPS
VSS
Temp sender
HEI
IAT (Intake air temp)

Fans, fuel pump control are optional. The Digital or Linear EGR not being
there will require some malfunction flags to be disabled.

VATS may need disabling in the chip. (MAP/SD systems use the Mass input for
Vats).
-----Original Message-----
From: ABTSZ <ABTSZ at aol.com>
To: diy_efi at esl.eng.ohio-state.edu <diy_efi at esl.eng.ohio-state.edu>
Date: Monday, April 13, 1998 9:11 PM
Subject: ?s about EFI conversion using GM ECM


>HI,
>I am new to the list, and I have a couple of questions.  I looked thru the
>archives but there are so many, I'm sure I missed the answers that must be
in
>there!
>Basically, I am going to try to adapt a GM EFI system to my non-GM engine.
I
>was considering using the ever-popular "730" computer.  My engine is a
6-cyl
>and I would pull the EFI system from a J-body with a v6.  I would then
adjust
>the fuel pressure until it was "close" and let the block-learn do the rest.
>  I have already looked around and all the harness I can find are hacked.
I
>have finally decided that I might just be "lazy" and order a new harness.
>There are many aftermarket harnesses for V8 TPI conversions around for as
low
>as $200 maybe less if I look some more.  One of those, a 730 from the
>junkyard, and some new sensors from DAP and I'll be set...maybe.
>The questions I have are:
>1:  Will a V8 TPI harness function as a 6cyl harness, so long as the 730
>computer has the right calibrator, etc.  Or will I have to rearrange all
the
>wires at the connector?
>2:  I will not be attaching anything but the bare essentials to the
harness.
>In other words, No VSS, EGR, etc.  Just the MAP, Water temp, air temp,and
TPS
>and HEI.  Will this cause any problems?  The computer can flash error codes
>all day long for all I care, just so long as it runs OK.  Or will I have to
>buy a chip with all these things disabled (I have NO programming skills)?
>
>TIA,
>Adam
>