if it is anything like the 1600/datto tachos then the tacho runs in series
with the coil negative, so the other wire that isn't the earth goes back to
the wire that would otherwise be on coil negative (black/white?).
zac
----- Original Message -----
From: Andrew Robert GREENBURY <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 26, 2001 11:57 PM
Subject: tacho wiring query
> Hi everyone
>
> Hopefully this one shouldnt be too hard for you smart ppl out there - I
> am wiring in a mazda tacho module from a 626. it has 3 wires -
> black/yellow, white/black and black. I figire one si to the coil neg, one
> is ignition power, but what would the other one be for?? (blacklighting
> comes from the instrument cluster so i dont think it is illumination).
>
> Anyone got any ideas what it might be, or can guess which one may be
> which, as the wiring diagram is giving me nothing? :)
>
> Thankyou
> Andrew (lots of questions lately :)
>
>
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