VSS problems

[Bruce Plecan]

-----Original Message-----
From: Tedscj at aol.com <Tedscj at aol.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Tuesday, December 01, 1998 7:39 PM
Subject: Re: VSS problems


> Some 730's use a 4,000ppm A/C signal, and some use a 2,000 ppm D/C.
> Bruce
>The EFI system is from and '89 Chevy Corsair with 2.8l V6 "w" code engine
with
>a manual transmission.  Thats with DIS, Speed Density and a 7730 computer.
>Memcal ATZD.
>
>It is now on a 258 c.i. straight six with a 700r4TH transmission.  The
engine
>is Jaguar and the tranny from an '88 Chevy Astro van.
>
>The manual for the original "w" engine from which the computer and memcal
came
>states that the VSS should be "4000 ppm"  I am assuming thats "pulse per
>mile".  The ECM also has "VSS high" and "VSS low" inputs.  I assume this
means
>requires an A/C signal.
>That is the VSS that I have got, yet the scan tool reads actual speed/6.


My best quess right now is putting a .01, or .1 mfd disc into the feed line
to the ecm.  /6 ain't seen before.
Bruce

>I don't have an EPROM burner, but I am thinking of getting one.
>
>Ted
>