I believe it works by induction, the current that pulses the injector
pulses the light. That thing is about a hundred bucks, amd yes, a
sthetoscope should work to listen to the solenoid.

Hector

On Mon, Dec 19, 2011 at 10:54 PM, neil n <musomuso@gmail.com> wrote:

> Neat. Thanks.
>
> I found #3 the best overall for "how to".
>
> I wonder if wiring in a footswitch would make things easier or slightly
> safer?
>
> That guy in #4 reminded me of a lighter weight version of Chris
> Farleys "motivational speaker" character. I wonder if one can feel if
> a FI is firing or use a mechanics stethoscope to hear it? Seems that
> device he shows works off of vibrations.
>
> Neil.
>
> On Mon, Dec 19, 2011 at 10:53 AM, Hector Zapata <hlzapata@gmail.com>
> wrote:
> > Found these DIY videos while browsing You Tube:
> >
> > http://www.youtube.com/watch?NR=1&feature=endscreen&v=7aT4S1lIBAY
> >
> > http://www.youtube.com/watch?v=dp-ECEpN52k&feature=related
> >
> > http://www.youtube.com/watch?v=VFJlTfHyrUk
> >
> > http://www.youtube.com/watch?feature=endscreen&NR=1&v=UrqyrI5aNl0
> >
> > Don't forget your safety gear and fire extinguisher...
> >
> > Hector
> > 1990 Carat 'Ursula'
>
>
>
> --
> Neil n
>
> 65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp
>
> '81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/
>
> Vanagon VAG Gas I4/VR Swap Google Group:
>
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>