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Tach Problem !!!!

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Old Oct 24, 2008 | 11:44 AM
  #1  
camarostripes96's Avatar
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From: Academy,Tx (home of temple/academy Drag Strip)
Default Tach Problem !!!!

ok well i installed an auto meter monster tach in my 96 trans am and the damn thing if off . I wired in into thewhite wire coming out of the C230 blue plug on the passenger side kick panel. Whenever i am at idle about 1000 on my dashboard tach , it shows about 2000 on my autometer, and the higher i rev it up or whatever the more it gets off, so if i rev it up to about 3000rpm it shows about 6000rpm on the autometer, and whenver i am driving and hit my shift point on my dashboard tach about 5200rpm it goes all the way up to 10,000 rpm on my autometer tach!!! :wtf: does anyone know what the deal is?
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Old Oct 24, 2008 | 12:04 PM
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not sure if this would help but i had to cut the brown and orange wire on the back of the tach because my tach was doing the same till i cut them.
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Old Oct 24, 2008 | 12:09 PM
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well i got this tach from my friend and the wires are already cut so
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Old Oct 24, 2008 | 01:29 PM
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Put the tach settings on 4 cylinder instead of 8 and your problem will be cured.
If you want to know why then do a search, its been covered eleventy billion times.
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Old Oct 25, 2008 | 08:20 AM
  #5  
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How to I switch it to 8 cylinders? Its an autometer autogauge monster tach
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Old Oct 25, 2008 | 08:35 AM
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you know those wires that are cut?

put them back together.

then it will be on the correct mode for you car.

and not being a ***** at all but the user above is 100% right this problem is about as common as "my LSX has a tick"

Last edited by waiting2bl33d; Oct 25, 2008 at 08:36 AM. Reason: add info
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Old Oct 25, 2008 | 09:29 AM
  #7  
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So what do I need to do? Like am I supposed to wire the brown into the orange ?
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Old Oct 25, 2008 | 10:20 AM
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http://autometer.com/productPDF/1244.pdf

look at the second page where it shows how to set the tach to 4cyl. cut the orange and brown wire the rest of the wires need connected.
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Old Oct 25, 2008 | 04:23 PM
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Originally Posted by camarostripes96
How to I switch it to 8 cylinders? Its an autometer autogauge monster tach
Yer not getting it, you want it set for FOUR cylinders, you already have it set for 8 and its not working out for ya very well is it???
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