speedo reads backwards on my 90 240sx

[Mr. S13]

The needle stays laid over past the 115 mark like its pegged, but once I hit about 40 mph it heads back to about 90. It also makes a ticking noise. It is still completely stock right down to the oem cassette player. So its not an issue of a jacked up dash harness. I don't think its the speed sensor or else it wouldn't read. I'm guessing that the magnets for the speedo are bad. Any suggestions or ideas would be great. Thanks.

[mexicanracer03]

your gauge is bad.

[Mr. S13]

your gauge is bad.

eh, that's no big deal, i have two parts cars, and i'm sure one of them is bound to be good.Thanks

[Azrial]

Not sure on the 240 but sometimes the speed sensors get messed up on cars. Either the cable gets tangled a bit or if it's electronic they sometimes collect small pieces of metal on the end of the speed sensor. Then the metal stays straight until you reach a certain speed and it will lay over allowing the sensor to work correctly at higher speeds. If changing speedometer doesn't work I would look into one of those.

[Mr. S13]

Not sure on the 240 but sometimes the speed sensors get messed up on cars. Either the cable gets tangled a bit or if it's electronic they sometimes collect small pieces of metal on the end of the speed sensor. Then the metal stays straight until you reach a certain speed and it will lay over allowing the sensor to work correctly at higher speeds. If changing speedometer doesn't work I would look into one of those.

cool i'll check it out. Thanks.

[AX75F92]

cool i'll check it out. Thanks.

Did you ever figure this out? Im getting the same problem...