[tech] ignition probs--please help!

[abatzis2@hotmail.com (Michael Abatzis)]

thanks. i thought i looked at both diagrams, and they showed the same thing. 
i'll double check in the am.  if this is correct then, my trouble should be 
with the power to the knock box.  hmmm. hopefully i'll have a running car 
tomorrow...
-michael


>From: "Erik La Celle" <lacelle@frontiernet.net>

>Mike,
>If you were in the main wiring diagram, this is probably not the right
>info for your car if you have a knock sensor (check it out -- no knock
>sensor anywhere in that diagram!).  There is a separate "Electronic
>engine controls -- 16-valve engine" later on in the current flow
>diagrams that does include the knock sensor system in it.  BTW, it shows
>the hall sender _is_ connected to the knock box, not the ignition
>control unit, just like you said.
>
>Will 3-4 volts do it?  I don't think so.  Check the power at the knock
>box, in and out, and you'll have your answer.
>
>Hope this helps,
>Erik L
>----- Original Message -----
>From: Michael Abatzis <abatzis2@hotmail.com>
>To: <scirocco-l@scirocco.org>
>Sent: Wednesday, May 01, 2002 7:55 PM
>Subject: [tech] ignition probs--please help!
>
>
> > i know most of you won't know this off the top of your head, but any
>help
> > would be truly appreciated.
> >
> > the short version: where does the hall sender (16v, same as 8v?) get
>it's
> > power (terminal 3) from? current diagram in bentley (near as i can
>read it)
> > says the ignition control unit. i don't see it. you can stop reading
> > here--this is mainly what i'm looking for. if you're feeling generous,
>and
> > want to read more:
> >
> > long version:
> > driving pretty hard in the new rocco. when i start up from a light, it
>bucks
> > and dies. quick check shows no spark.  tested everything in bentley
>(except
> > knock sensor). nothing from hall sender when cranking. power to hall
>sender
> > was 3-4 volts (bentley says it should be 12). is this enough to cause
>there
> > to be no spark? for kicks, replaced distributor and knock box. timing
>belt
> > intact.
> >
> > any ideas?
> >
> > my understanding of ignition system (don't need to read this to answer
>the
> > question):
> >
> > power goes to hall sender-->distributor turns, hall sender sends out
>timed
> > voltage signal to knock box-->knock box modifies timing based on input
>from
> > knock sensor-->modified timing signal sent to icu-->icu acts kind of
>like a
> > relay, and switches power to coil-->power to distributor cap-->power
>to plug
> > wires
> >
> > thanks,
> > -michael
> >
> >
> >
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