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Registered
Join Date: Feb 2024
Posts: 1
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Hi, after much thought, I decide to change the cog myself on my 1986 911 odometer, as it had deterioated and didn’t record mileage. I labelled all the wires when I took the speedo out, and then plugged them in again after the cog change. The issue I have now, is that as soon as I turn the ignition on, the speedo shoots all the way around past the top speed and hits the odometer reset switch. If I turn the ignition off, then the Speedo arm returns to the 0 mark. I have no idea what I have done to upset my speedo, but it’s not happy with me. Any help/suggestions would be very much appreciated. I thought I was saving money by doing the odometer cog myself, after watching numerous YouTube clips… and now it looks like I may have to end up spending money to rectify the new problem.
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Registered
Join Date: Jun 2010
Location: North Bay, ON
Posts: 472
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Check your connections
On my 86, they are brown, green, white, red, left to right viewed from the front.
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1986 3.2 to 3.4 conversion |
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Tags |
speedometer issues , speedometer needle broken , speedometer sensor |