Pegged Tachometer

[Frank_McAlpine]

I have a 2000 I30 and the alternator didn't keep the voltage up when I was driving and the electronics acted up. The only noticeable problem currently is the Tachometer pegged way past redline. Is there any easy fix to get the tachometer functioning again.

[MinisterofDOOM]

Try disconnecting the battery for a few minutes to reset the electronics. Unless you already did that to change the alternator.

[Frank_McAlpine]

No luck with leaving the battery disconnected. I then restarted the car to see if the tachometer would function normally but it stayed pegged. I don't think the car's computer is messed up I just think the gauge needs to be reset but I was wondering if anybody knew more on the topic. Thanks

[Frank_McAlpine]

Over time it fixed it's self problem solved... I guess

[Chris92SE]

those alternator/electrical things are strange.

when the alt. went out on my QX4, all of my gauges were batty. The tach was all over the place and the lights (it has a backlit gauge cluster) were flickering. I knew what the problem was, but I just had to limp it home.

It sat at a shop for several days because we had over a foot of snow and the part was held up because they closed the freeways.

When I got it back, everything was working OK.