Much like Donny in the movie The Big Lebowski, I may be "out of my
element" here but.....

Assuming a properly functioning engine and IS system, if one measured
current draw at the ISV, loads on and off, at idle, cruising speed and
WOT, could they get a really good idea of when the ISV is used? (valve
changes position). Maybe a graphing meter would be useful in this
regard? My guess is that at idle, no loads (PS, AC) the valve is
closed. Or.....

Isn't the ICU basically taken out of the picture any time the throttle
is just off idle or at WOT?  (throttle enrichment switch activated or
not).

Did you find the correct "Vanagon" Digifant pro training manual
online? If not, can send more images. There may be some useful in
there for your needs.

Neil.

On Wed, Nov 20, 2013 at 7:40 AM, Brett Ne <brettn777@gmail.com> wrote:

>
> > This still wouldn't tell me the most important information that I need to
> know: how is the idle air valve supposed to behave outside of the normal
> idle conditions.  Is it supposed to be closed, partially open, or fully
> open during engine startup, driving down the road, and fully open
> throttle.  I haven't found a source that positively tells me how the idle
> air valve should be behaving under these conditions, so I have to have some
> measurements from a healthy controller in order to find out.

--
Neil n

Blog: tubaneil.blogspot.ca

'88 Westy http://tinyurl.com/c8rlw6p

'81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/

Vanagon VAG Gas inline-VR Engine Swap Group:

http://tinyurl.com/d7gd5ej