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post #1 of (permalink) Old 05-12-2019, 01:58 PM Thread Starter
LKHanberg's Avatar
Join Date: Jun 2009
Posts: 512
ECM to Tacho signal?

Trying to wire up a different tacho on my SP-1.
Anyone know what signal the ECM is sending to the tacho?

The tacho I'm fitting is looking for 2 pulses pr motor revolution, positive signal, 10V peak to peak, but it is not moving when wired up. Speed etc is working, so just need the tacho to start doing stuff :-)
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