Inaccurate spedometer? WTF?
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Inaccurate spedometer? WTF?
I have a 99 Hatchback with a B18c5 motor/trans swap and ITR guages installed. Problem I have is that at speeds over 25, by spedometer is off by 5 MPH too high. If the needle is at 70, I'm going 65 in reality. I found this out after using my Garmin GPS on a trip. In my 08 Fit, the speed matches exactly so it's not a question of the GPS' accuracy. Tires are 205-45-16 which I believe is right at stock diameter.
Any idea what could be causing it to show a faster speed?
Any idea what could be causing it to show a faster speed?
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Re: Inaccurate spedometer? WTF?
Well it's already off by .5mph but that's not a big difference for tires. For the other 4.5mph. Bump for someone else with more excperience.
#6
Re: Inaccurate spedometer? WTF?
Black Wire: chassis ground
Black/Yellow: Ignition Power
Blue/White: VSS Out
#7
Re: Inaccurate spedometer? WTF?
Both speedometers on my 97 and 00 completely stock Civics read 3 mph faster than true speed. My understanding is that this a well known problem of 6th gen Civics. This now leaves an unexplained 1.5 mph.
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#11
Re: Inaccurate spedometer? WTF?
Manufacturers have been known to make cars read high from the factory.This helps keep them out of trouble when speeding tickets and things of that sort come up. If you have a factory service manual or something similar,sometimes they have a table that shows what is acceptable and what isnt in terms of actual speed
Last edited by Sales@Bisimoto.com; 10-16-2009 at 01:55 PM.
#12
Re: Inaccurate spedometer? WTF?
Oh, sorry. Now I understand what you are saying. Thats not at all what I meant (that was literally copied and pasted from my Integra manual). What I meant to be saying basically was, It's not simply a mechanical device. It is closer to what the pickup of a guitar is.
A device that measures the fluctuation of the magnetic field induced...
In turn, a change in resistance can effect the output accordingly...
A device that measures the fluctuation of the magnetic field induced...
In turn, a change in resistance can effect the output accordingly...
#13
Re: Inaccurate spedometer? WTF?
Manufacturers have been known to make cars read high from the factory.This helps keep them out of trouble when speeding tickets and things of that sort come up. If you have a factory service manual or something similar,sometimes they have a table that shows what is acceptable and what isnt in terms of actual speed
#14
#16
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Re: Inaccurate spedometer? WTF?
Manufacturers have been known to make cars read high from the factory.This helps keep them out of trouble when speeding tickets and things of that sort come up. If you have a factory service manual or something similar,sometimes they have a table that shows what is acceptable and what isnt in terms of actual speed
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