Maxum 2100 SC2 - Tachometer not working

[Sonojet]

Hi everyone!

I'm having a problem with the tachometer on my 00' Maxum 2100 SC2.
The needle doesn't work but the built-in hourmeter works.

Any suggestions? (The engine works and makes noise... )

Thank you.

[mmwjr]

Try removing and cleaning the S wire and terminal.

Any movement?

[Sled600]

I had the same issue. I Replaced the tach and all was well. I did check with a meter that can read a tach signal to confirm I had a tach signal to the dash first.

[Sonojet]

Originally Posted by mmwjr

Try removing and cleaning the S wire and terminal.



Any movement?

Did it... and no improvement.

[mmwjr]

As Sled said but a volt meter on the sense wire to look for a voltage, it's a pulse so the meter will display the average of the pulse. If present replace the tach.

[Sonojet]

Thanks for the help.
If I understood correctly, I may use a voltmeter connected to the Sig and Gnd, to check any voltage.
This way any problem with the wiring could be detected.

[mmwjr]

Correct

[Sonojet]

After some research, found the Faria Troubleshooting Guide. It might be useful.
I'm going to try tomorrow and see if I can fix the tachometer.

http://faria-instruments.com/site_ma...pair_guide.pdf

[mmwjr]

Good luck and post how it goes