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Author
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Topic: Tach question
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306Coupe
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Member # 4988
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posted
 
 
My Tach double the RPM reading. Can anyone help?
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1987 Coupe- Not stock
Posts: 2039 | From: Rocklin | Registered: Oct 2004
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Blu50Stang
CAFords OG
Member # 489
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posted
Is it new or used? What brand(assuming it is an aftermarket tach)?
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Ross
'88 GT - 5.0&SF 4/04 | MM&FF 8/09 | MM&FF 79-93 Mustang Performance Cover 12/12
'17 GT350R
Posts: 1916 | From: Not CA | Registered: Oct 2001
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Hungry Hippo
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Member # 537
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posted
it its aftermarket, it might be wired as a 4 or 6 banger setup
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05 S4 Avant(wagon)
09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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306Coupe
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Member # 4988
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posted
It's used. It's a Autogauge. What wire do I have to cut to make it accurate for a 8 cylinder?
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1987 Coupe- Not stock
Posts: 2039 | From: Rocklin | Registered: Oct 2004
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jay-vee
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Member # 2708
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posted
the Auto gage is wired for a V8, to change it to a 6 you clip the BROWN wire that sticks out of the back, for a 4 cyl you would clip both the BROWN and ORANGE wires. Check to see if those 2 wires are clipped on the back of your tach
Posts: 52 | From: san mateo | Registered: Apr 2003
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306Coupe
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Member # 4988
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posted
I'll check now
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1987 Coupe- Not stock
Posts: 2039 | From: Rocklin | Registered: Oct 2004
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306Coupe
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Member # 4988
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posted
There are only the black red green and white wires coming from the back ![[Confused]](confused.gif)
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1987 Coupe- Not stock
Posts: 2039 | From: Rocklin | Registered: Oct 2004
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AJBlackGT
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Member # 3936
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posted
Theres a few smaller gauge wires that you can pull out of the hole on the back also.
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90 Notch
Posts: 1896 | From: Sacramento | Registered: Dec 2003
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