Date: Sat, 6 Mar 2004 19:42:52 -0500
Reply-To: Jonathan Farrugia <jfarrugi@UMICH.EDU>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jonathan Farrugia <jfarrugi@UMICH.EDU>
Subject: Re: more trouble with Billy
In-Reply-To: <10d7a0410d5781.10d578110d7a04@ou.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII
Warren
i haven't been following your saga with billy very closely but i have this
to say. i don't know if you have done this yet but, i believe you need to
take a systematic approach to this problem. get out your bentley and your
multi-meter and test every digifant component and compare it to the specs
in the manual. a good additional resource in my opinion is the bentley
manual for the 85-92 golf and jetta. they used the digifant system and
the treatment of the digifant system in the golf manual is MUCH better
than the treatment in the vanagon manual.
what i have done in the past is to make myself a "cut" sheet. this is a
sheet(s) of paper with all the specs for the system. this helps to reduce
needing to flip through the manual while trouble shoot. additionally mark
the page numbers in the bentley next to your written specs on the "cut"
sheet for quick reference.
once you have verified all the components, verify the whole wiring harness
for continuity and resistance. the final step is to check for resistance
drops in the ground system. do this by attaching one end of the meter to
the negative post of the battery and then using the other probe on the
meter to check all the grounding spots and various other places on the
engine and transmission. in a properly grounded system there should be
close to zero resistance between the battery negative and any of the
other ground points. a note here to a degree the quality of the
readings are somewhat dependent on the quality of the meter, i suggest a
fluke for most people.
if you have done all of this and you haven't found the problem then you
will need to move onto intermittent driving problems or faults. this is
where the digi-tool comes in handy. although i haven't needed one yet
with this procedure. :)
jonathan
On Sat, 6 Mar 2004, Warren.K.Lail-1 wrote:
> Hi Malcolm,
>
> I'm certainly interested in a Digi-Tool. I checked out the website but
saw no info on sales. I tried to follow the link to Darrell's site, but
it kept timing out. Any other links to Darrel's site?
>
> Thanks
> Warren
>
> ----- Original Message -----
> From: Malcolm Stebbins <mwstebbins@yahoo.com>
> Date: Saturday, March 6, 2004 1:08 pm
> Subject: Re: more trouble with Billy
>
> > Maybe you should get Darrell Boehler's digitool
> > to help you diagnose the problem. Try:
> > http://www.251.org/digitool.html and search the
> > archives for digitool" This is truly a great
> > invention for you EFI types. Malcolm
> >
> >
> > --- "Warren.K.Lail-1" <wlail@OU.EDU> wrote:
> > > Oh, I was so proud of myself this afternoon with my
> > > 'timing success' that I took ole Billy out for a
> > > drive. Guess what - now he's skipping worse than
> > > ever.
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Search - Find what you?re looking for faster
> > http://search.yahoo.com
> >
>
