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Old 05-08-2021, 12:31 PM   #5
billr
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Join Date: Jul 2013
Posts: 6,156
Default Re: 1998 sc2 tach issues still

So, it is reading, but at 1/4 the proper rpm?

I'll check out the wiring connections you described and post again later.

I just re-read you last post, I think it is incomplete. You describe how you connected the RED wire and the RED/GRN wire from the 9117 adapter, but I think there are more than two wires from the adapter (4 of them?). How are the other adapter wires connected, and can I assume the adapter is connected to the ach as shown in the (again, poor) published Autometer info? I will post a link to the info I am referring to in my later post.

Oops,,, no need to post the Autometer info, that was already done in reply #2 by somebody else! Time to study some more now...

Last edited by billr; 05-08-2021 at 12:41 PM.
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