93 Infiniti G20 Tach has twitch

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Justin - 30 Apr 2007 15:22 GMT

Hello group,
MY tach will twitch and jump around , bearing no affect on the engine.
Will even do it with IGN on and car not running.
Sometimes will jump a little or bounce around like crazy any ideas?

Thanks,
Justin

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Telstar Electronics - 30 Apr 2007 18:44 GMT

> Hello group,
> MY tach will twitch and jump around , bearing no affect on the engine.
> Will even do it with IGN on and car not running.
> Sometimes will jump a little or bounce around like crazy any ideas?
> Thanks,
> Justin

Could be the tach itself. You need to disconnect the input to the
tach. Allow the tach to still be DC powered. Does it still have the
problem. If it's still doing it... the tach is goofed up. If the
problem stopped... you probably have a poor connection somewhere on
the input wire.

www.telstar-electronics.com

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