[s-cars] [Fwd: Dropped a cylinder]

[Robert Pastore]

Often, ignition misses occur only under high load, and can be hard to
diagnose.

POS > Expensive little part, but easy to swap in a known good part.

Plugs, boots: 5K ohm resistance spec on the boot can isolate a failure.

Coils:  Resistance is so high, it maxes out my ohmmeter.  Any reasonably
easy way to isolate an intermittently failing coil?

Bob

-----Original Message-----
From: Darin Nederhoff [mailto:editor at s-cars.org]
Sent: Tuesday, August 13, 2002 10:49 AM
To: s-car-list at audifans.com
Subject: [s-cars] [Fwd: Dropped a cylinder]


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Les,

I just had the same thing happen.  Lost #1 cyl.  Found out that it was the
coil.  Replaced it and the car still missed.  Found out that a bad coil will
sometimes short the ignition control unit.  Replaced that unit and all is
fine.  Coil ran about $90 but the ignition control unit was expensive at
about $270.

HTH,

Doug



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