Date:         Fri, 28 May 2010 08:12:29 -0400
Reply-To:     Mike <mbucchino@CHARTER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mike <mbucchino@CHARTER.NET>
Subject:      Re: Audiovox cruise control/Subaru engine
Comments: To: colorworks@GCI.NET
In-Reply-To:  <344E574EA2224E25AFDC3414A6FD9957@troyb5bff49d63>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
              reply-type=original

  My own '87 WBX auto Westy had the same problem when I initially installed
the same cruise control.  I put the magnetic pickup on the CV and adjusted
the switches to get the effective speed range a little lower.
  I was beginning at 50 mph and going up to about 100 mph, so I adjusted it
down to about 30 mph - 80 mph for more usability.
  I added a Golf/ Jetta underhood vacuum storage canister and tee'd in a
large Golf/ Jetta vacuum check (along with the little vacuum check) plumbed
in properly, to add additional vacuum.  It made all the difference, and now
it works flawlessly.
    It sounds like you need to do the same things on your vehicle to get it
working properly.
  IIRC, you don't use both the VSS and the tach connection, the blue wire
goes to one or the other, not both.  You lose over-rev protection when you
don't pick-up tach signal, but the tach is not a good way to regulate
vehicle speed in an Automatic; there'sway too much slush between engine rpm
and wheel rpm for accurate speed control.

Mike B.

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From: "Troy" <colorworks@GCI.NET>
Sent: Friday, May 28, 2010 1:46 AM
To: <vanagon@GERRY.VANAGON.COM>
Subject:      Audiovox cruise control/Subaru engine

> Hi folks:
>
> I have an EJ22 Subaru engine in my automatic, 89 vanagon. I am using
> Audiovox CSS -- 100. I have some questions about the hookup, as I've been
> running the unit with a tach only signal, and I'm told from Audiovox it
> requires a VSS and Tach signal to work properly (automatic).
>
> There are only three wires from the speed sensor. A 12 V positive red, a
> black negative, and then a blue (signal wire) which presumably gets hooked
> up to the gray wire (VSS) from the cruise control. To my knowledge there
> are only two other wires from the Audiovox that are important. A purple
> tach wire and then a blue brake wire. I may have the blue and purple
> backwards here, but I know they are working okay as the audiovox does
> disengage when I apply the brake. I believe the problem is either with the
> DIP switches or I'm not getting good contact with the gray wire. The
> connection is not great there.
>
> So, looking for advice on how to set the dip switches. I think the VSS
> wire is hooked up correctly, as there really is only one wire from the
> speed sensor that makes sense to hook up to.
>
> The cruise control does work, but does not hold speed very well. I tried
> changing the sensitivity to high, but that just coused lurching, and
> bucking of the van. The pulses per minute I believe are set at 8000, and I
> believe that is incorrect. I think there's a 4000 and 5000, but need some
> help on this one.  What's correct?
>
> I tried to switch number 3 to VSS (vs tach), but that basically disabled
> the cruise control. Not sure if that means I am not getting a good signal
> or not?
>
> Suggestions?
>
> Troy