hall sensor question

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customtii1
MS/Extra Newbie
Posts: 1
Joined: Tue Feb 14, 2012 3:09 pm

hall sensor question

Post by customtii1 »

I have a 74 2002 tii running ms2. Everything up and running great. After 1000 miles of running, have a developing problem with the crank sensor. Ordered a new automotive grade sensor from digi key. My questions are, I've noticed on diy they are running the hall sensor on the vr circuit. Why would you do this?
Are there any known issues with running the documented hall circuitry?

Thank you in advance
Adam
rickb794
Super MS/Extra'er
Posts: 6155
Joined: Sun Dec 21, 2008 10:28 am
Location: Portland OR

Re: hall sensor question

Post by rickb794 »

See this thread http://www.msextra.com/forums/viewtopic ... 01&t=43861

and you want to start with the modified (extra approved) opto circuit

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Matt Cramer
Super MS/Extra'er
Posts: 17507
Joined: Thu Apr 16, 2009 8:08 pm

Re: hall sensor question

Post by Matt Cramer »

The VR circuit makes a great general purpose input circuit - it can handle just about anything except the high voltage spike off an ignition coil.
Matt Cramer -1966 Dodge Dart slant six running on MS3X
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