John,

I had forgotten about your project. Is there any way I can help from a
long distance??

I have some cobbled together info on another project - unrelated to our
vans. It's a black box setup using a microprocessor to read a voltage
signal from a thermocouple in an electric kiln, feed it through the box
through the parallel  interface into a desktop computer, where a simple
"basic" program will interpret  the signal and then respond with a
positive or negative signal for a specified time to a contactor in a 240
volt circuit, either turning the power on, or off, depending, and
holding it there. This allows the ramping of temperature, a hold on
temperature, or a cooling period on temperature.- All from a PC. Capable
of running several kilns at once.

Might have some relavence to the van, I just don't know.

Regards,

John Rodgers

John Bange wrote:
>> Has - or is - anyone working on reverse engineering the idle stabilizer
>> control using modern digital processor technology?
>>
>> Seems to me that for someone knowlegable with electronics, it could be
>> done with over-the-counter components. and would take up far less space.
>> The boards and electronics of the current ISC for the 2.1 L WBX is a
>> nightmare. I need to replace mine and I was just wondering if anyone was
>> working on it.
>
>
> I have a "back burner" project for that I've been working on off and on,
> here and there, more or less. The original VDO-built monster is a
> bizarre,
> hand tuned analog computer that manages to keep RPM at a certain spot
> without being able to actually count revolutions OR minutes. I figure a
> fifty cent digital microcontroller could probably do the same thing
> better
> and more reliably with dozen lines of assembly language. I've worked
> out the
> basic code for the controller, but that's the easy part. Lately I've been
> repeatedly sidetracked on one or another more critical projects (brake
> fluid
> leaking from rear wheel cylinder is the current one) and haven't had
> time to
> wire up my telemetry system to record how the current system works.  If I
> ever get the measurements I can start fumbling with the electronics.
>
> --
> John Bange
> '90 Vanagon - "Geldsauger"
>
>