[A4] 97 A4 2.8l V6 AFC code, No start, No spark, No DTCs

[James Hanson]

My issue is definitely a bad coil.  Moved the coils around, and the
problem followed the coil.  Measuring block 15 in the VAG-COM.  Buying
the VAG-COM tool just saved me a ton of money!  Couldn't have figured
this out without it.

Maybe this is already in the collective wisdon, but I didn't know it..
 So here it is so that it may help someone else:  Symptoms were
flashing MIL, really rough running.  Misfires on a single cylinder at
idle.  Misfires would get a bit better when revved up, but the car was
barely drivable.

Also, I have the L version on all 4 cylinders.  As far as I know, the
coils are all original.  Should I replace all the coils, or just the
bad one?

Thanks,
James




On Dec 15, 2007 10:08 PM,  <Pbadore at aol.com> wrote:
> On the 1.8l AEB code turbo the high failure component is the output stage
> (aka the ignition control module or alternately called by others as the little
> thingy POS). The AEB 1.8 turbo has individual coils over spark plugs but unlike
> the later 1.8l turbos these are only coils without an integrated output stage
> hence the need for the output stage. Have you checked your ECM for misfires by
> individual cylinder and spark retardation by individual cylinder? Both can be
> read with VAG-COM or with a factory 1551 or 1552 or the newer tools.
>
>
>
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