Join Date: Apr 2010
Ferrari Life Posts: 2,199
Clynton, try swapping your Cat ECU's from side to side to see if the problem moves.
You'll probably need to clear codes after the swap and before starting.
'99 550, Rosso Corsa / Nero, S/N:114654, Assy: 31836, Engine: 52084
High mileage, low compression, and missing on a few cylinders.....just like my cars.
Maranello Skunkworks Team Member