My speedometer works as it should (odometer, too), but the speed displayed is about 10% faster than the actual speed of the car. This was determined by real time comparison to a "pace" car with a verified speedometer. The tires are stock 175/70-13.

What could be the problem? I thought the VSS either works or it doesn't.

Car is 1996 Honda Civic DX coupe.

Thanks,
Scott

 

probably because your car calls for 14's open your driver door and look at the sticker in the door jam

 

I have 00 EX and 97 DX Civics. Both speedometers read approximately 3 mph faster than the actual speed. It's a well known problem.

 

The 96 DX calls for 13's.

 

my 97 lx has 14's and is practically the same as a dx just power windows

 

DX has 13's and LX/EX has 14's. Confusing I know.

 

RonJ, do you suggest just living with this speedometer problem, that is, the hassle and/or expense are not worth it? I've had the car for two years now and it's not a big deal to me, but I like things to work for others that operate the car and for potential resale.

 

In my opinion, just live with it. Someone on Honda-tech figured out that putting on different sized tires brought the speedo reading closer to reality. I just look at my Civic speedos and know I'm actually traveling 3 mph slower than what I see. No big deal, and it reduces speeding tickets.

 

Thanks. I'll let it go. Ironic that a bicycle computer (with speedometer) is so easy to calibrate.

 

I went from the factory 14s to the factory 13s (heck of a deal. 4 brand-new 13's mounted/balanced on steelies for $125). I did notice that my speedo is off now, but not too bad. I'll just live with it.