Saab 9-3 Convertible M2003, Owner'S Manual

Page: 138 / 256

138 Starting and driving
Limp-home
The car’s engine management system has
a diagnostics function that, once the engine
has been switched off, checks a number of
internal functions. If a throttle valve fault is
detected, the engine management system
will initiate limp-home mode for the valve.
This means that:
• idling speed regulation will be impaired
• the cruise control system will be inopera-
tive
• the capacity of the A/C compressor will be
limited.
When starting the car in limp-home mode at
temperatures below 32°F (0°C), depress
the accelerator slightly.
If the diagnosis function detects any faults in
the engine management system, the
“Engine malfunction (CHECK ENGINE)
“ indicator in the main instrument panel
will light up (see page 61). The car should
be checked as soon as possible at an
authorized Saab dealer.
NOTICE
• If the engine sounds strange there is a
fault. Contact an authorized Saab
workshop immediately.
• The use of fuel with too low an octane
rating can cause serious engine
damage.
WARNING
If the engine is being run with the car on a
rolling road or dynamometer, longer than
for a standard state emission inspection,
to ensure adequate cooling, air must be
blown into the engine compartment and
under the car at a rate equivalent to the
ram-air effect that would be obtained at
the corresponding road speed.
93uC03.book Page 138 Thursday, May 30, 2002 11:36 AM