how can you test whether or not the vr sensor is giving off a pulse?

wave a screwdriver over the end,you should get 0.5 volts ac

Plug the input into a cheap amp and spin whatever you're testing up.

As long as you're getting more than 20 pulses per second you should hear something..... Interference might be an issue though....

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measure the resistance if isn't there it wont work..

yupsz an AC voltage swing should be visible...

don't untherestimate the voltage...it really can go high...

Tks