VR Polarity

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jonfx4com
Experienced MS/Extra'er
Posts: 282
Joined: Fri Nov 18, 2005 8:30 am
Location: North of UK
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VR Polarity

Post by jonfx4com »

I see lots of statements that VR polarity must be correct but none as to how I tell if its correct. Should I get a positive pulse on tach as metal moves towards the sensor or away?

Also I see some conflicting info on jumpering TSEL. Should it be to VRout or VRoutinv?

Any help would be appreciated.


Using msnsextra with hi res code.

Jon
pete
MS/Extra Newbie
Posts: 10
Joined: Sun Jul 24, 2005 6:53 am

Post by pete »

Just got my EDIS up and running in limp mode. While assembling I found that you could not get a polarity reading on a VOM. Polarity would swing from + to - which makes sense after I read up on how the VR works. I did find that you can get an AC voltage off of it while cranking (~1.5 VAC). All this did was ensure that the VR was close enough to the trigger wheel to operate.

Like the instructions say I guessd when I hooked it up. it's a 50/50/90 thing. 50/50 shot at getting it right and 90% of the time your wrong :D. I swapped the leads and it worked. My grey wire turned out to be - but Im not using the plug that came off of the crank trigger so the color coding is meaningless.
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