broken tachometer

[hareless at gmail.com (Sean Whalen)]

The tach comes from the neg. side of the coil, #1.


On 4/14/07, julie@menloparkrandd.com <julie@menloparkrandd.com> wrote:
>
> Sorry karl, The tach signal comes from the positive side of the coil. If
> the car runs then the sig from the dist to coil is OK. Check the wires on
> the coil. One will have a plastic connectort with 2 wires. IIRC the green
> wire is the tach, the black is the switched 12 from the ignit switch.
> Welcome to 20+ YO cars :)
>
> >-----Original Message-----
> >From: Karl Krupke [mailto:kkrup62@hotmail.com]
> >Sent: Saturday, April 14, 2007 01:35 AM
> >To: ajmccaus@gmail.com, scirocco-l@scirocco.org
> >Subject: RE: broken tachometer
> >
> >Hi Andrew,
> > um... Bentley manual for your model and year, electrical schematic;
> >trace, isolate, troubleshoot.
> > I'm being brief and trying to NOT sound rude (probably failing, sorry).
> > If the engine is running and the tach is not announcing that fact to
> >you; just follow the wiring by the book, test as you go from signal
> >generator (distributor) to monitor (tach).
> > Quick cheat; see if you can fake the tach into reading something. If so,
> >it's working, just not getting signal. In that case look for a bad
> >connection, either loose wiring or cracked flex circuit (wrapped behind
> the
> >gauge cluster on older VW's).
> >
> >Karl
> >
> >>From: "Andrew McCausland" <ajmccaus@gmail.com>
> >>To: scirocco-l@scirocco.org
> >>Subject: broken tachometer
> >>Date: Fri, 13 Apr 2007 22:57:35 -0600
> >>
> >>Hello all, since I bought my new 16v the tach has not been working at
> all.
> >>Any ideas on what to look at to fix it?
> >>
> >>Much appreciated!
> >>
> >>--
> >>Andrew McCausland
> >>87 Scirocco 16v Black
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-- 
Sean
A-1 x 2