[s-cars] '95.5 'miss' issues

[Krasusky Paul (WQQ2PXK)]

Great advice, indeed, Jimeister...  appreciate the detail!  Thanks too all
that also replied privately...

-P better his car than mine K.




-----Original Message-----
From: Jim Klein [mailto:jimk at spotgraphicsinc.com]
Sent: Friday, July 18, 2003 12:44 PM
To: pkrasusky at ups.com
Cc: s-car-list at audifans.com
Subject: RE: [s-cars] '95.5 'miss' issues


Paul,
Robert Anderson and I did this exact swap last night.  It took us under
an hour with his HOT car and my cold one to swap everything and then
swap it back.  4 allen bolts on top, one more to get the ground off,
then snip 2 ZIP ties, disconnect 4 plug connectors at the firewall.
Draw a diagram to make sure your plug configuration stays the same when
reassembling.  CAUTION - don't assume both cars are the same, Robert's
and mine had two plugs that were reversed positionwise, it would have
been possible to hook it up wrong.  So make one diagram for EACH car.
VERY easy and it showed us that yes, one of his coils is bad, it
booseted fine using my coil package plate assembly.
Jim


Message: 9
From: "Calvin & Diana Craig" <calvinlc at earthlink.net>
To: "Krasusky Paul (WQQ2PXK)" <pkrasusky at ups.com>,
        <s-car-list at audifans.com>
Cc: <kcquiros at hartfordfinancial.com>
Subject: RE: [s-cars] '95.5 'miss' issues
Date: Fri, 18 Jul 2003 00:18:50 -0600

Paul,

The reason the miss goes away is because the "load" on the spark plug
gap is
not as great.  In other words the more pressurized charge of air you
have in
the cylinder the harder it is to get the spark plug to actually create
the
arc and basically break down the charge of air.  The amount of voltage
required actually linearly increases with the gas density.  That is why
with
less boost the coil pack still works.

It is really not that bad to swap out whole ignition "plates" if you
will.
It is just 4 connectors (2 for positive wires and 2 for the negative
sides)
near the firewall and probably clipping some wire ties.  Just be sure
that
you get the connectors hooked back up correctly or else you will be
firing
cylinders out of order.  If you go to replace coilpacks I highly
recommend
photographing the plate with all the packs on it before disassembly for
later reference; as well as labeling wires as you clip/splice into them.

Each coil pack requires a little different length wire as well so just
measure twice and cut once for each coil pack.  It is a very
conceptually
simple procedure but one in which it pays to be meticulous.

--Calvin