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

erratic tachometer...ever seen this?

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Old Nov 7, 2010 | 08:49 PM
  #1  
Messejichael's Avatar
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Joined: Nov 2010
Posts: 13
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From: austin tx
Car: 1991 L98 z28 camaro
Engine: 5.7 TPI 350 (GM stock replacement)
Transmission: 700r4
Axle/Gears: 3:73
erratic tachometer...ever seen this?

my tach jumps and bounces all over the place like a mexican jumping bean! is it just a bad gauge? i checked the wires from the distrubitor..and they seem fine...any suggestions or stuff you can help me bat around would be much appreciated.
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Old Nov 8, 2010 | 03:36 AM
  #2  
RaGiN Z's Avatar
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Joined: Apr 2008
Posts: 100
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From: Connecticut
Car: 83 Camaro
Engine: 383 stroker, mini blower, nitrous
Transmission: TKO600
Re: erratic tachometer...ever seen this?

if you have the filter plugged inline with to the distributor, take it out of the loop.

Its a little brown tube looking thing right behind the distributor. Just unplug the wiring from it, and go directly into the distributor.
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Old Nov 8, 2010 | 09:06 AM
  #3  
Apeiron's Avatar
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: erratic tachometer...ever seen this?

Are all your plugs firing?
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