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Date:         Mon, 29 Jul 2002 22:09:18 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Mystery Electrical Trouble
Comments: To: Steven Dodson <steven@EPOCHDESIGN.COM>
In-Reply-To:  <vanagon%2002072921583238@GERRY.VANAGON.COM>
Content-Type: text/plain; charset="us-ascii"; format=flowed

Any chance you can get a two-channel scope and hang one channel on the hall output and the other on the coil secondary? Then have someone drive you around while you watch the scope?

d At 09:58 PM 7/29/2002, Steven Dodson wrote: >Further investigation based on leads I have received from all of you has >netted the following: > >1.9L WB w/digifant (1987) >(note: tests performed per VW factory manual, page 28.39 for coil test, >page 28.43 for hall sender test and page 28.44 for control unit test) > >Coil test: OK > >Hall sender unit test: (in bottom of distributor) OK > >Control unit test(EC, ECU): OK > >However the problem still occurs as it has, speraticaly. >(2 incidences today) >I think these tests were intended to be used on a vehicle that isn't >running at all. > >The trouble is I can't rely on the problem to persist long enough to test >the above. I will load up all the necessary gear and make a try of it. > >Q: If you grab ahold of the hall sender jack coming off the bottom of the >distributor, should it be loose? I would think not, but wiggling it has no >effect on the problem. > >Any new suggestions?

-- David Beierl - Providence, RI http://pws.prserv.net/synergy/Vanagon/ '84 Westy "Dutiful Passage" '85 GL "Poor Relation"


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