> Why I don't really like this idea either is that assuming I find a relay
> with contacts far enough apart it is still possible that on say a humid
day
> the spark WOULD jump across the contacts. I guess I could heavily modify a
> relay so the contacts are say 1cm apart, I believe that would be enough,
but
> being a safety device I'd rather go with something a little more "sure".
:)

You could use a SPDT relay that routes the spark line to either the spark
plug or some dummy load.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olin@embedinc.com, http://www.embedinc.com

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