Join Date: Apr 2010
Ferrari Life Posts: 2,206
First, I'm neither a 360 expert, nor a DBW throttle expert.
The idle speed is programmed into the ECU('s), so is under ECU control, and they do it by either controlling the main DBW throttles, or possibly idle air control valves, if the car is so equipped.
The ECU('s) are throwing codes, so they obviously aren't happy the car is only idling at 300 RPM, so that's telling me the main throttle shaft(s) may be sticking, or the idle air control valves are sticking.
Time for some carb cleaner on the shafts. If that doesn't sort it, then I'd bring it to a trusted Ferrari technician.
'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