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Tach jumps around?

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Old May 20, 2002 | 10:08 PM
  #1  
Trent257's Avatar
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From: waukesha, WI USA
Tach jumps around?

my tach jumps around kinda, its a electronic from a 90 iroc
any suggestions on how to fix it?
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Old May 21, 2002 | 02:32 AM
  #2  
ZZ42Fast's Avatar
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From: Rugby, England
Car: 1988 IROC Vert
Engine: 355 ZZ4
Transmission: T5 Manual
Mine did that too. I replaced my coil and it went away. I changed to an Accell Super Coil. If you're going to change may as well upgrade
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Old May 21, 2002 | 05:45 AM
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Trent257's Avatar
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From: waukesha, WI USA
where can i get that coil and how much?
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Old May 21, 2002 | 07:33 AM
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From: Rugby, England
Car: 1988 IROC Vert
Engine: 355 ZZ4
Transmission: T5 Manual
Try Summit or Jegs. I live in the UK so I ain't much use

I know I couldn't sleep with my Tach acting the goat until I sorted it. Good luck!

Ahh I think www.nextgen.com ?? (not sure of the address) sell them
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Old May 21, 2002 | 07:58 AM
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From: Tucson, AZ
Car: 1991 Z-28
Engine: Can you say stroke?!?!
Transmission: 700-r4
Axle/Gears: 3.42
Also check the connections to the coil. If any of them are damaged, it will cause the same thing!

Good luck!
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