Where to wire my Sunpro Tach too?

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Where to wire my Sunpro Tach too?

Postby Kenny727 » Wed Sep 23, 2015 12:13 am

I have my sunpro tach all wired up except for the wire to read the RPMS..
Now I hear your supposed to use the negative terminal from my coil, but that is not working...

What wire from my module, coil, or distributor should I splice into to get a reading?
If it is the negative coil terminal what else can I try to troubleshoot it?
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Re: Where to wire my Sunpro Tach too?

Postby BOBLOOK » Thu Sep 24, 2015 7:50 am

negative terminal from my coil should work any day
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Re: Where to wire my Sunpro Tach too?

Postby Kenny727 » Tue Sep 29, 2015 3:36 am

Dang I'm not getting anything. Ill try it again just to be sure, but could it be the tach?
The lights work.. I can set the RPM shift light..
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Re: Where to wire my Sunpro Tach too?

Postby Kenny727 » Tue Sep 29, 2015 3:41 am

Kenny727 wrote:Dang I'm not getting anything. Ill try it again just to be sure, but could it be the tach?
The lights work.. I can set the RPM shift light..


Can I use the wire from behind the Stock tach? IF so what wire would that be?
IS there a fuse the could have been blown inside the tach?
does the gauge of the wire really matter since its just going to the negative?
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Re: Where to wire my Sunpro Tach too?

Postby BOBLOOK » Tue Sep 29, 2015 8:21 am

Those tach are universal did you set the correct cyl 4 ?
And the NEG ciol for the reading of the rmp ?
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Re: Where to wire my Sunpro Tach too?

Postby Kenny727 » Wed Sep 30, 2015 1:57 am

BOBLOOK wrote:Those tach are universal did you set the correct cyl 4 ?
And the NEG ciol for the reading of the rmp ?


Yes its on 4.. I get no reading in any settting.
And yes it goes directly to the negative side of the coil?
Can I hook it up of the distributor or something?

Now I was short on wire and used a remote amp wire would that be a problem?
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Re: Where to wire my Sunpro Tach too?

Postby BOBLOOK » Wed Sep 30, 2015 9:40 am

No the dizzy don't read tach signal

The wire shouldn't be an problem

How did you hooked wires colors ?
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Re: Where to wire my Sunpro Tach too?

Postby Kenny727 » Sun Oct 04, 2015 5:02 am

BOBLOOK wrote:No the dizzy don't read tach signal

The wire shouldn't be an problem

How did you hooked wires colors ?



I have it wired:
Black to Ground
Red to Switched power
White to Switched power (Keep the light on)
Green to negative on coil

The - on the coil only has the green wire, and black from the ignitor.

Tomorrow I will use my multi meter
Negative to green wire
positive to red wire
If that shows voltage does it mean its my tach?
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