Tachometer (RPM gauge) only work for 2 min

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Aug 27, 2009 | 03:12 PM

Hellemyr

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From: Norway

Tachometer (RPM gauge) only work for 2 min

Hi.

On my S4 with S5 turbo engine, the tachometer stops working after a minute after i start the car, and falls to 0 RPM.

What can cause this, bad connetion somewhere in the wire jungle?

Aug 27, 2009 | 03:39 PM

Aaron Cake

Engine, Not Motor

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From: London, Ontario, Canada

Your car has a dizzy, correct?

Check the trailing ignitor on the dizzy. They do fail, from time to time.

Aug 30, 2009 | 12:57 PM

Hellemyr

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Junior Member

Joined: Mar 2009

Posts: 27

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From: Norway

How do i check it?

Messure it with an ohm meter or multi meter, or visually inspect it to see if its broken?

Aug 31, 2009 | 09:45 AM

Aaron Cake

Engine, Not Motor

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Joined: Feb 2001

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From: London, Ontario, Canada

See the testing procedures in the 1st gen RX-7 FSM (available as a download from the FAQ). You will need a meter and a test light.

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