speedometer problems

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Apr 11, 2012 | 06:50 PM

Merle

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Racer

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speedometer problems

My car is a 91 C2. My speedometer needle goes fine to about 45 MPH and then stops. My spoiler is working fine and I'm not getting any warning lights. Any suggestions as to the problem?

Apr 12, 2012 | 12:40 AM

Merle

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Racer

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So I cleaned the left front ABS sensor, pulled apart the frequency converter in the trunk and cleaned all of the contacts inside and took it for a drive. I brought my tomtom along to see how far off the MPH is from the speedometer. The tomtom is usually accurate within about 2 mph's from the speedometer in my Audi. In the 964 it looks as if that the speedometer is accurate up to about 40 MPH and then starts getting exponentially worse the faster I go.

Apr 12, 2012 | 01:16 AM

Silvertarga

Burning Brakes

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From: chin on taint

did you check connections at sending unit ?

Apr 12, 2012 | 01:40 AM

Merle

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Racer

Joined: Sep 2011

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Quote:

Originally Posted by Silvertarga

did you check connections at sending unit ?

Is that on the back of the speedo? Mine doesn't take it's signal from the transmission since it's a 91. At 50 on the gauge I'm at about 55 on my tomtom and at 60 on the gauge I'm at around 68 on the tomtom.