tabe johnson wrote:
> Went to Bellingham to pick up a loaner ECU (thanks,
> Jere!!!!) and the van ran flawlessly all day.  This
> was either because it was a dry day or because one
> of the many things I wiggled last night had an effect.
>
>
>
>
> OK, stupid question (and it's not even Friday!)
>
> A spark coil is basically just a transformer, right?
> So doesn't the high high voltage created by the coil
> have to get "back" to the coil after going through the
> spark plug? You have the two low tension wires on the
> coil, just like on a transformer.  You have a a high
> tension output that goes to the distributor.
> But what happens from there?  Does it go through the spark
> plug to ground, which is also connected to the coil body?
>
>

That's right.  One end of the high voltage winding in the coil is grounded.

>
> --tabe johnson
> Vancouver, BC
> 87 Westy
>
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