When you say swapped vanos solenoids, you mean you tried new replacements?

Mine misfires, again not really misfiring more like it's retarded timing on the even number cylinders on both banks. Have done all the same swaps and tests as you.

But mine is only on cold starts, the cel sometimes only blinks and goes away or sometimes it blinks and stays on but otherwise shortly after the car drives perfectly regardless of clearing the codes or not.

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2005 Imola 4.8iS