1984 4k - no start

[jlagnese at massed.net]

I just plugged in another. Do you have an extra? If
not, where are you? You could borrow one of my
extras. I do have a few known working units. They
are the same on quite a few VW/Audi. This went south
on my 87 16V Scirocco. I actually used one from a 91
Jetta IIRC.

I'm sure that the Bentley has a way to check.

John
---- Original message ----

  Date: Tue, 4 Aug 2009 12:25:43 -0400
  From: "Bares, Vittorio"
  <Vittorio.Bares at nuance.com>
  Subject: RE: 1984 4k - no start
  To: <jlagnese at massed.net>, <quattro at audifans.com>

  How does one test that?

   

  Also, there was a suggestion to check the
  12v at the coil – coil has 4 wires (2-green on
  one side, 2 black on the
  other connector) – which ones deliver 12v to the
  coil? (they look awfully
  thin)

   

  Vittorio -

----------------------------------------------------

  From:
  jlagnese at massed.net [mailto:jlagnese at massed.net]
  Sent: Tuesday, August 04, 2009
  11:48 AM
  To: Bares, Vittorio;
  quattro at audifans.com
  Subject: Re: 1984 4k - no start

   

  Check the spark control unit. Its piggybacked on
  the computer.
  ---- Original message ----

  Date: Tue, 4 Aug
  2009 10:42:59 -0400
  From: "Bares, Vittorio"
  <Vittorio.Bares at nuance.com>
  Subject: 1984 4k - no start
  To: <quattro at audifans.com>
  >So, has new wires, rotor, cap, plugs - was
  running fine - then about a
  >week ago, while driving it - it just stopped
  running.
  >
  >
  >
  >I cleaned the contacts on the coil - started
  again, but wasn't running
  >well. Almost as if it was running on 4 cyl (it is
  a quattro 5cyl :-)). I
  >was trying to diagnose by pulling one sparkplug
  at a time while it was
  >running, not much change when I did so -
  consistently for all 5 plug
  >wires.
  >
  >
  >
  >Pulled the plug on the temp sensor in the rear of
  the head - no diff.
  >
  >Pulled the plug on the sensor that is on the fuel
  distributor - no diff.
  >
  >
  >
  >This morning - no start...
  >
  >
  >
  >No spark.
  >
  >
  >
  >I'm thinking hall sensor??
  >
  >
  >
  >Vittorio -
  >
  >
  >
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