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Join Date: Nov 2007
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73 1.7 - Tachometer won't work.

I'm in the process of getting my farther-in-law's 914 on the road again. He passed away and the car sat outside for 7 to 10 years. Anyway... I'm trying to get the tach to work.. I know the problem isn't in the signal wire. Just wondering what the next step would be. The engine runs and fine, and besides the clutch, so does everything else... Is the problem in the wiring? ... or does the tach need replaced?
Old 11-20-2007, 03:44 PM
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Make sure the black/purple (black with purple stripe) wire is hooked up to the (-) terminal on the coil. Make sure it's hooked up to the tach as well. And make sure that the ground and switched power are plugged into the back of the tach.

If there's a good connection through the black/purple wire, the red/white wire gets +12V when the key is on, and the brown wire has a good ground, then either your tach is bad or you have the wires plugged into the wrong places.

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A few pics of my car:
Old 11-20-2007, 06:35 PM
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