How does a tacho sensor work?

Quote:

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Originally Posted by AB

The original 1990 td42 GQ one mate. It works fine but doesn't read below 900rpm.

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There have been several cases of the tacho not working below 1000 rpm with the TD42 sensor wired directly to the TB45 tacho.
I bought a Dakota Digital tacho interface to solve that problem on mine. Mine works perfectly now.

Quote:

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Originally Posted by mudnut

You used a spacer, so I guess you are using a two wire sensor?

Another bloke was having trouble too, but not a TI.

http://www.nissanpatrol.com.au/forum...ion-type-tacho

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Yep, two wire sensor.

This is the Dakota unit


Attachment 70025
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Interesting it's starting to read below 900rpm a bit now but shakes until 900rpm.

For what I've been through that is ok for me now, I can live with that....lol