Success ! ! !

thank you all ... Mark and Olrivrrat point me in the right direction...

I took the white plastic connector out and used 2 wires with alligator
clips and connected them to the 2 spades on the coil... and... hurah.. the
tachometer works again !!!
It turns out that one one the female spades in the white connector doesn't
stay in place when I put it on the coil...  it moves back inside the white
connector.... so now I have to figure out how to block it...

you guys are wonderful and made my day... :-)

dan

On Tue, Aug 31, 2021 at 7:44 AM OlRivrRat <OlRivrRat@comcast.net> wrote:

> On 30 Aug , 2021, at 10:56 AM, Dan N <dn92610@GMAIL.COM> wrote:
> >
> > “ if the pair of wires in the large white plastic connector (at the 2
> prongs post) are reversed, the
> > van cranks but won't start.”
>
>       This would indicate that Somehow 1 of those 2 Spades on the Coil +
> Post is Not making
>
> connection to the Coil ~ Not quite sure how that can happen but I would be
> inclined to do a
>
> Continuity Test from each of those Spades to the Post they are supposed to
> be nutted onto &
>
> also from Spade to Spade ~
>
>        Or possibly 1 of the Spades is not Straight Up & Down / Parallel to
> the Other so that when
>
> 1 makes a connection the other 1 can’t ~ So if the Green Wire that
> provides pulse from the ECU
>
> to the Coil is connected then it will start but the Green Wire, which goes
> to Tach does not get that ~
>
> pulse ~ Actually vaguely recall having seen this some time in the past ~
>
>         Also,, If the Spades are Straight & Parallel to 1 another then
> look inside the White Connecter
>
> to see if 1 of the Female QuickConnects is out of proper position ~ Sorry
> about thinking so slow on
>
> My feet & in Bits&Pieces on this,, got a bunch going on ~