rpm gauge problems!

[Anonymous]

Something has gone wrong with my rpm gauge....the gauge needle doesn´t follow the engines rpm!

when my actual rmp is 7500 the gauge show me 3500rpm!

anyone knows whats gone wrong?!

 

[Fast Guy]

How do you know your rpm is 7500 if the gauge isn't working? :?

Have you fitted anything that takes a feed from the tacho signal?

 

[Anonymous]

not exactly...but my rew limiter went in about 7500rpm!

no i have just looked on the cable connections on the backside of the gauges...but i looked good!

how do i now if the tacho signal is perfect?!
can i use an elctrical ohm gauge to see if the resistans is okey?

 

[Toady]

have a fiddle with the wires goin into the back of your clocks, and also the wires from your ecu, as it may just be a loose wire, the ecu runs the tacho btw.

 

[Anonymous]

I had the exact same problem with mine, I checked everything and it annoyed me for days. Turned out to be the gauge. So I would suggest trying someone elses first to see if it is the gauge or not, before getting out the multimeter and going crazy