[Biturbos4] B5 V6 "unilateral" misfiring

Chris Newbold chris at newbold.org
Mon Apr 14 09:15:18 PDT 2008

On Mon, Apr 14, 2008 at 12:03 PM, Long, Scott G A1C USAF AFMC 88
SFS/S4W <Scott.Long2 at wpafb.af.mil> wrote:

> Is there an ingnition control module that tells the cylinders when to
>  fire?  Do the coil packs on bank 2 share any common ground wiring?  What
>  about common 12+ wiring?

I believe the components involved are the 6 per-cylinder coil packs,
the 2 per-bank output stage amplifiers and the engine ECU. So other
than the amplifier doohicky, there does not appear to be any other
component which is bank 2 specific.

I'll have to pull out the Bentley wiring diagrams and trace everything
down to see if there is any bank-specific shared wiring. This seems
likely, though. I was vaguely hoping that someone might have some BTDT
experience with this and would say "Look _there!_"....


2001.5 S4 Avant 6spd
2004 allroad 2.7T

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