6 - Technical information
135
Exhaust system overheating alarm
devices
If the engine malfunctions with consequent
high temperature in the exhaust system,
the red warning light on the multi-function
display, showing the words
SLOW DOWN
will fl ash or stay on.
The
SLOW DOWN
symbol activation is
controlled by the thermocouple via the
Motronic ECU.
If the warning light fl ashes,
the catalytic converter temperature is too high.
Slow down immediately and go to an
Authorized Ferrari Dealer
to have the
malfunction repaired.
If the warning light remains on,
the temperature in the catalytic converters has
reached a dangerous level and could damage
them; if driving is continued, the injection-
ignition system ECU will intervene by cutting
off the fuel supply to the injectors.
Metallic-type catalytic converters are
utilized on this vehicle.
The system is made up of two pre-
catalytic converters and two main catalytic
converters.
The catalytic converters reduce the
emission of HC, CO and NOx into the
atmosphere.
Each exhaust manifold contains a pre-
catalytic converter which, thanks to its
proximity to the gas outlet from the
combustion chamber, assures faster heating
and greater effi ciency in exhaust emission
reduction during the phases immediately
following engine start-up.
The front oxygen sensor and the
thermocouple are installed on the
manifolds, one at the inlet and one at the
outlet of the pre-catalytic converter. The
rear oxygen sensor is installed at the outlet
of the main catalytic converter.
To prevent permanent damage to the
catalytic converters, it is essential that
only unleaded fuel be used.
Do not park the car over paper, dry grass
or leaves or fl ammable materials that could
catch fi re if they come into contact with hot
parts of the exhaust system.
Stop the vehicle and have it towed to an
Authorized Ferrari Dealer
to have the
malfunction repaired.
Ferrari
is not liable for any damage to
property or personal injury arising from
failure to comply with the warnings stated
above.
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