VR Sensor Polarity

Hamiltonguitars · Post by **Hamiltonguitars** » Mon Jul 31, 2006 8:05 pm

I did a search, could not find an answer.

Question: I recently Purchased a new VR sensor for my Zetec installation, but, how do I tell which end is postive and which is negative. The wires are the same color. Can I test for polarity somehow?
Thanks,
Rod

MrSandman · Post by **MrSandman** » Sat Jan 13, 2007 8:28 am

I find that a little surprising knowing the assistance usually available on this form.

I can't remember from my install how I determined it. I may have just been lucky when I connected them up.

MartinM · Post by **MartinM** » Sat Jan 13, 2007 10:12 am

As Rod H's post is from July 2006, I suspect the problem may be solved

VR sensor polarity is a bit of a black art - if you have a complete EDIS setup then tracing wire colours and using the standard sensor connector will lead to a solution.

If not, getting the wires the wrong way round will not harm anything, but it won't work

Hamiltonguitars · Post by **Hamiltonguitars** » Wed Jan 21, 2009 9:01 pm

There's no magic to figuring out the polarity of the VR sensor. You hook it up, if it doesn't work, you hook it up the other way. It appears there is no way to check it otherwise.

MartinM · Post by **MartinM** » Wed Jan 21, 2009 9:20 pm

....well you could hook the output up to an oscilloscope and see the polarity of the waveform around the missing tooth is as the trace on http://www.bgsoflex.com/mjl/mjl_edis_summary.html (i.e. negative to positive going), but that may be a bit extreme

...

alexander · Post by **alexander** » Wed Jan 21, 2009 9:52 pm

dont you just hate it when you find you have answered a 2 year old question? i have been caught like that a number of times.

Autosport Labs

VR Sensor Polarity

VR Sensor Polarity

No Answers Yet!!!

As Rod H's post is from July