[Biturbos4] Misfire

[Robert Bullivant]

Alan,

If you are having misfire with the 2.7T engine, I'd strongly suggest 
trying a new set of plugs, and if your at
high mileage replace all of the coil packs if they are original. ECS 
sells the coild packs in sets, and
they are not expensive.  All coil packs will fail eventually.  You can 
buy a set of 6 for $44. @.  It's a
known issue on this car, especially if you are running boost above stock.

Robert