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Strange Speedometer Problem

 
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Old 12-17-2011, 04:23 PM
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Strange Speedometer Problem

95 Prelude, original h23, original 5spd, original everything.

Running stock size wheels and tires, only changed things are exhaust and it has been lowered.

The speedometer is way off.

When I do 20 mph, the speedometer reads 21/22.
When I do 40 mph, the speedometer reads 29.
When I do 45 mph, the speedometer reads 30.

I have watched the speedometer as I am accelerating and it just lags once I hit the 20s on the cluster. The other day it randomly worked perfectly the whole day (30 mph meant 30 mph). Then I was getting on it pretty hard one time and once the speedometer hit about 45 mph it jumped all the way to 65 and felt pretty accurate.

Any clue what's going on?
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Old 12-17-2011, 04:27 PM
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Re: Strange Speedometer Problem

could be a bad vss maybe.. though i am not sure just an idea
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Old 12-18-2011, 01:13 PM
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Re: Strange Speedometer Problem

My guess would be a failing VSS too, although I haven't dealt with this issue before...
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Old 12-18-2011, 09:49 PM
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Re: Strange Speedometer Problem

Would it help if I tell you the ABS light is on? The ABS doesn't work at all.. thinking that might be a bad wheel sensor... but I have no idea if that has anything to do with the speedometer.
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