Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

tach install ?

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Old May 7, 2007 | 07:56 PM
  #1  
raptor80dad's Avatar
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From: So.MD
Car: 92rs
Engine: 350
Transmission: 350
Axle/Gears: 3.73/Moser 12bolt
tach install ?

I have an Auto Meter Sport-Comp monster tach I would like to install in my 89 Iroc 5.7 TPI.

I have no instructions so I need some help .
It has 4 wires coming out of it , a white , a black , a red & a green .
If anyone could tell me what to hook where I would be

Thanks in advance Mike
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Old May 11, 2007 | 01:51 PM
  #2  
nedoss's Avatar
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From: Texas
Car: 1986 Camaro
Engine: 355 HSR
Transmission: TH-700R4
Axle/Gears: 10 bolt 4:11 posi
Re: tach install ?

It has been awhile but i believe it goes:
black - ground
red - 12V switched source (fuse block)
white - 12V for light
green - rpm signal from coil

also look here: AUTOMETER
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Old May 11, 2007 | 09:21 PM
  #3  
raptor80dad's Avatar
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Joined: Jan 2006
Posts: 348
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From: So.MD
Car: 92rs
Engine: 350
Transmission: 350
Axle/Gears: 3.73/Moser 12bolt
Re: tach install ?

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