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Tach Failure


samdroid
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3 hours ago, gstallons said:

I checked my Greenie just while ago .  At pin 3 (yellow/black stripe) I got 50hz at idle . At 3k I measured around 150hz.  

 HTH . Sorry for the delay .

Thank you! Did you happen to test DC voltage?

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At the yellow/black wire ? No , frequency only . You would get DC if this were a square wave (pulse width modulation) signal to the tach . IDT this was this the case w/this setup .  

Or , no I didn't check the alternator output voltage . I can check both of these if I need to .                               

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