16v Ignition Woes

[ranahan@charter.net (John Erickson)]

Thanks for the good wishes.  I went through all the grounds today.  I 
checked the resistance from the ECU, ICM and the Knock Box to 
ground.   They're good (0.1 ohm).  I hope it was just a bad ICM.  I get a 
new one tomorrow.

John


At 06:49 PM 7/8/2002 -0700, Larry wrote:
>John-  Yours is just the sort of problem that makes me want to swear off
>Sciroccos FOREVER.
>Good luck.
>
>Larry
>
> > My car quit last week and, per the Bentley, I had a bad ignition control
> > module.  I replaced it and the car started right up.  I've been doing
>other
> > work so I didn't drive it much.  I started it up today and it ran for
> > awhile, then it quit again.  It appears to be the ICM again.
> >
> > When the first one failed, the test on terminals 1 and 15 of the coil
> > indicated no voltage jump to 2 or more volts when I grounded pin 12 of the
> > knock box connector.  On this one, I get a steady 7.5 volts on pins 1 and
> > 15 as soon as I turn on the ignition and nothing happens when I ground pin
> > 12 on the knock box connector.   Out of curiosity, I tested the
> > coil.  Primary is 0.8 ohms and the secondary is 4K.  According to the
>book,
> > the secondary should be between 6.5K and 8.5K.   I think the coil issue is
> > secondary to the ICM problem though.  It should work OK at 4K, but it
>might
> > be a little weak.  8v engines have 3.5K ohm secondary coils.
> >
> > Also, on a side note, prior to the second failure, my fuel relay was going
> > nuts.  Absolutely clicking like crazy.  I believe the signal that comes
> > from the knock box (pin 12) actually starts with the ICM, doesn't it?
> >
> > Soo...  a run of bad luck or is something killing my ICMs?  I noticed the
> > ICMs are marked as rebuilt units.  There must be some kind of failure rate
> > if they are rebuilding them.
> >
> > Nothing was done to the car prior to the initial ICM failure BTW.  I do
>not
> > believe I did anything to induce the failure.  I've just been driving the
>car.
> >
> > That's enough.  I'm frustrated.
> >
> > John
> > Long Beach, CA
> > 87 16v
> >
> >
> >
> > _______________________________________________
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> > Scirocco-l@scirocco.org
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> >
>
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