catalytic converter SAAB 9-5 2001 Owners Manual

6Engine compartment,
4-cyl engine
IB583
Engine: description ___________ 192
Engine oil level: checking ______ 193
Engine oil: changing __________ 194
Engine oil specification ________ 253
Brakes and braking ___________ 167
ABS brakes _________________ 167
Brake system ________________ 198
Brake fluid __________________ 257
Brake pads __________________ 257
Fuse panels ___________ 215
Changing a fuse ________ 215
Table of fuses __________ 217
Relays _______________ 218Temperature gauge ______ 55
Driving in hot weather ____ 173
Driving in winter_________ 172
Coolant:
checking/changing __ 196 / 197
Cooling-system capacity _ 252
Power steering __________ 199
Steering fluid: grade _____ 199
Wiper/washer control stalk _ 68
Washer fluid: topping-up __ 204
Washer jets ___________ 204
Jump starting ________________ 183
Battery _____________________ 199
Battery charge _______________ 199
Manual transmission __________ 158
Automatic transmission ________ 159
Manual transmission oil ________ 256
Automatic-transmission fluid ____ 256
Important considerations
for driving ___________________ 151
Turbo unit ___________________ 189
Engine: technical data __________ 252Ignition system _________ 148
Drive belts _____________ 202
Spark plugs ____________ 254
Catalytic converter ______ 152Warning labels ___________ 8
V.I.N. number __________ 259
Engine number _________ 259
Gearbox number ________ 259
Color code _____________ 259
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7
Engine compartment,
3.0t V6
IB585
Warning labels ___________ 8
V.I.N. number __________ 259
Engine number _________ 259
Gearbox number ________ 259
Color code _____________ 259Ignition system _________ 148
Drive belts _____________ 202
Spark plugs ____________ 254
Catalytic converter ______ 152Important considerations
for driving ___________________ 151
Turbo unit ___________________ 189
Engine: technical data __________ 252
Automatic transmission ________ 159
Automatic-transmission fluid ____ 256
Brakes and braking ___________ 167
ABS brakes _________________ 167
Brake system ________________ 198
Brake fluid __________________ 257
Brake pads __________________ 257Jump starting ________________ 183
Battery _____________________ 199
Battery charge _______________ 199
Fuse panels ___________ 215
Changing a fuse ________ 215
Table of fuses __________ 217
Relays _______________ 218Engine temperature gauge _ 55
Driving in hot weather ____ 173
Driving in cold climate ____ 172
Coolant:
checking/changing _ 196 / 197
Cooling-system capacity _ 252
Power steering _________ 199
Steering fluid: grade _____ 199
Wiper/washer control stalk _ 68
Washer fluid: topping-up __ 204
Washer jets ___________ 204
Engine: description ___________ 192
Engine oil level: checking ______ 193
Engine oil: changing __________ 194
Engine oil specification ________ 253
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51 Instruments and controls
CHECK message indicator
This light indicates that there is a message
in the SID. A chime will also sound
(see page 61).
Central warning light
This light will come on and a chime will
sound if a fault has been detected in any
system that is critical to safety. Any of the
following can activate the central warning
light and alarm:
 Airbag system.
 Low oil pressure in engine.
 Parking brake is on (when car is moving).
 Brake fluid level low.
 Fault detected in ABS system.
 Electronic brake force distribution (distri-
bution of brake pressure between front
and rear wheels).
 Engine overheating.
 Alternator not charging properly.
Engine malfunction
(CHECK ENGINE)
This light indicates a malfunction in the
fuel-injection or ignition system. The car
may still be driven with care and with some-
what diminished performance (see page
151).
Indicator, fuel
This light comes on when there is less than
about 2.5 gallons (10 liters) of fuel left in the
tank.
WARNING
An illuminated ”Engine malfunction
(CHECK ENGINE)” indicator light indi-
cates a serious engine-related problem.
While your car may be able to be driven
with the ”Engine malfunction (CHECK
ENGINE)” indicator light illuminated
(Limp-home mode), you are advised to
have your car serviced at an authorized
Saab dealer as soon as possible.
Continued driving without this problem
being corrected might cause serious
further damage to your car and create
unsafe driving conditions. The operator
should be prepared to take action if such
unsafe conditions arise (e.g., apply the
brakes, disengage transmission, turn off
the ignition etc.).
NOTEThe car should be checked immediately
at an authorized Saab dealer to prevent
more serious faults from arising.NOTEIf the car runs out of fuel, air can be drawn
in with the fuel, which, in turn, can cause
the catalytic converter to be damaged by
overheating.
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151 Starting and driving
Limp-home modeThe car’s engine-management system
includes a diagnostic function that checks
numerous internal functions after the
engine has been shut off. If a fault is
detected in the throttle system, the
engine-management system puts the throt-
tle system into the limp-home mode. This
limits idling control, disables the cruise-con-
trol system and limits the capacity of the A/C
compressor.
If the limp-home mode is in operation
(”Engine malfunction (CHECK ENGINE)”
light on, see below) and the outside temper-
ature is close to or below freezing, you may
need to use some throttle on starting (some
pressure on the accelerator).
If the diagnostic system has detected a fault
in the engine-management system, the
”Engine malfunction (CHECK ENGINE)”
light on the main instrument panel will
come on (see page 51), indicating that you
should have the car checked as soon as
possible by an authorized Saab dealer.
Important
considerations for
drivingThe engine-management system in the
Saab 9-5 is called Saab Trionic T7. The
system manages the ignition, fuel injection
and turbo boost pressure.
The Trionic T7 system developed by Saab
is an intelligent engine-management
system designed to achieve optimum driv-
ability under differing driving conditions.
The system makes adjustments automati-
cally, for instance, if the car is being driven
at altitude (oxygen-deficient air), for differ-
ent grades of fuel (AON 87–93) and for dif-
ferent load conditions.
1 Starting and driving
 Refrain from using full throttle before
the engine has warmed up (before
needle in mid-range on temperature
gauge).
 A safety function prevents the engine
from revving faster than 6,000 rpm by
limiting the induction air.
2 Stopping the engine
 Do not rev the engine immediately
before switching it off - stop the engine
when it is idling.
3 Regulating the boost pressure
 The system is optimized for fuel with an
octane rating of AON 90. The 2.3 T
(Aero) and 3.0t V6 are optimized for
NOTEIf the CHECK ENGINE warning light
starts to flash, ease off the accelerator
slightly. If the light does not cease to flash
within 5 seconds, stop the car in a suita-
ble place as soon as possible and turn off
the engine. The car must be towed to an
authorized Saab dealer.
If the CHECK ENGINE warning light
flashes, it indicates that the engine is
misfiring which can result in damage to
the catalytic converter.
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152 Starting and driving
AON 93. One of the advantages of the
system is that it enables the engine to
be run safely on lower-grade fuel,
although not lower than AON 87.
 The maximum boost pressure is
adjusted automatically to the knocking
or pinging tendency of the engine.
Occasional, short-lived knocking when
the engine is under a heavy load is per-
fectly normal; the extent will depend on
the grade of fuel in the tank.
 Isolated instances of knocking are
more likely to occur with low-octane
fuel. This controlled form of knocking,
followed by a reduction in the boost
pressure, is a sign that the wastegate is
functioning and is perfectly safe for the
engine.
Important considerations with cata-
lytic convertersThe catalytic converter is an emission-con-
trol device incorporated in the car’s exhaust
system. It consists of a metal canister with a
honeycomb insert, the cells of which have
walls coated in a catalytic layer (mixture of
precious metals).
To ensure that the catalytic converter con-
tinues to function properly, and also to avoid
damage to the converter and its associated
components, the following points must be
observed:
 Have the car serviced regularly in accor-
dance with the service program. The fuel
and ignition systems are particularly
important in this context.
 Always be alert to any misfiring of the
engine (not running on all cylinders) and
any loss of power or performance. At the
first sign of a malfunction, reduce speed
and take the car to an authorized Saab
dealer as soon as possible.
 If the engine fails to start (in very cold
weather or if the battery is flat), the car can
be jump started (manual gearbox only) or
started using jump leads to a donor bat-
NOTEIf constant knocking occurs every time a
load is put on the engine, this indicates a
malfunction in the system.
Have the car checked without delay by an
authorized Saab dealer.
WARNING
If the engine is being run with the car on a
rolling road or dynamometer, 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 corre-
sponding road speed.
NOTEUse only unleaded gasoline. Leaded gas-
oline is detrimental to the catalyst and
oxygen sensor and will seriously impair
the function of the catalytic converter.
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153 Starting and driving
tery. However, as soon as you have
started the engine, it is important that it
runs on all cylinders. If it is misfiring, allow
i t t o i d l e f o r u p t o f i v e m i n u t e s t o g i v e i t t i m e
to settle and run smoothly. If, after this
time, the engine still fails to run properly,
turn off the engine and get in touch with an
authorized Saab dealer for advice.  Never park the car on dry grass or other
combustible material. The catalytic con-
verter gets very hot and could therefore
start a fire.
 Never drive off if the engine is misfiring.
 If you jump start the car when the engine
is already up to normal temperature, the
engine must start to run on all cylinders.
Stop jump-starting if the engine fails to
start immediately.
Failure to follow these directions could
result in the catalytic converter and associ-
ated components being damaged, and
could represent a breach of the warranty
conditions.
3.0t V6: When starting the engine from cold
an electrical pump is activated. This pump
pumps air into the exhaust system so that
the catalytic converter will reach its normal
operating temperature more rapidly. The
pump is active for 30-60 seconds.
Fuel filler flapThe fuel filler flap is opened by means of a
button on the driver’s door. The flap is
spring-loaded, so it opens slightly automat-
ically when released.
NOTEIf the car runs out of fuel, it is possible for
air to get into the fuel system. If this
happens, the catalytic converter may
overheat and be damaged.
IB1289
2
2
1
3
3
Oxygen-sensor-controlled
injection system 1 Engine control module
2 Oxygen sensor (lambda probe)
3 Catalytic converters
B466
Button for releasing filler flap
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191 Car care and technical information
Engine familiesSaab cars imported into the United States
and Canada meet all applicable emission
control standards. The engine family and
appropriate tune-up specifications are iden-
tified on a label affixed to the left front inner
fender.
These engine families meet applicable EPA
Federal Standards, California State Stan-
dards and Canadian Federal Standards and
are equipped with the following systems:
• Sequential multiport fuel injection system.
 Three way catalytic converter.
 Crankcase emissions control system.
 Evaporative emission control system.
 On-Board diagnostic (OBD II) system.
Emission control
systemsThe systems for controlling emissions to the
atmosphere require regular checking and
adjustment at the intervals specified in the
service program.
In addition to meeting the exhaust emission
regulations and thereby helping to keep the
environment clean, a correctly tuned engine
will also give maximum fuel economy.Saab Trionic engine management
systemThe Saab Trionic engine management
system is a unique Saab development that
combines sequential multiport fuel injection,
electronic distributorless ignition and turbo-
charger boost pressure control into one sys-
tem.
The Trionic engine control module (ECM)
monitors many different engine parameters
such as:
 Intake manifold pressure.
 Intake air temperature.
 Crankshaft position.
 Engine coolant temperature.
 Throttle position and
 The oxygen content of the exhaust gases.
The ECM receives information regarding
engine knocking from a sophisticated feed-
back function in the ignition discharge unit.
By processing all of this information, the Tri-
onic system can control fuel injector open-ing duration, ignition timing and turbo-
charger boost pressure to provide excellent
engine performance while maintaining low
emissions and fuel consumption.
NOTEThe Trionic engine management systems
continuously monitors the operation of
these systems and have on-board diag-
nostic capabilities (OBD II).
If the ”Engine malfunction (CHECK
ENGINE)” lamp in the main instru-
ment illuminates, this indicates that the
Trionic ECM has detected a problem. The
car will continue to operate, but perfor-
mance may be diminished. You should
have your car checked by a Saab dealer
as soon as possible.
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217 Car care and technical information
Fuse panel in instrument panel
# Amp Function
A 30 Trailer lights
B 10 Automatic transmission
C 7,5 Electric door mirrors; DICE
1 15 Brake lights; shift-lock override
2 15 Reversing lights
3 10 Parking lights, left
4 10 Parking lights, right
5 7,5 DICE / TWICE
6 30 Electric windows, right
6B 5 Stop lights, trailer
7 10 Fuel injection
8 15 Trunk lighting; trunk lock; door lighting; SID; car
phone
9 15 Audio System; diagnostic instrument; CD changer
10 15 Memory function, door mirrors; heating, rear seat
11 30 Central locking; electrically adjusted passenger seat
12 7,5 Automatic transmission
13 20 Audio System, amplifier
14 30 Ignition system, engine
15 15 Preheated oxygen sensor (catalytic converter)
16 20 DICE (direction indicators)
16B – –
17 20 Engine-management system
18 7,5 Door-mirror heating
19 20 Fuel pump
20 15 ACC; interior lighting; rear fog light
21 10 Audio System; rear-view mirror with auto dimming
function; telematics
22 40 Interior fan; air pump (3.0t V6 only)
23 15 Sunroof
24 40 Rear-window heating
25 30 Electrically adjustable driver’s seat; fuel-filler flap
26 7,5 ABS brakes; ACC
27 10 Engine-management system
28 7,5 Airbag (SRS)
29 7,5 Automatic transmission
IB530
BC123456 A
14
121110987
13
6B
1516
2324
222120191817
16B
5425262728293031
3635343332
39383755525356
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263 Index
Index
AA/C system, fault diagnosis
_______ 230
A/C system, maintenance
_________ 230
ABS brakes
____________________ 167
ACC
__________________________ 70
ACC functions
___________________ 73
ACC, automatic climate control
_____ 70
ACC, calibration
_________________ 78
ACC, condensation _______________ 79
ACC, programming _______________ 76
ACC, useful tips
_________________ 78
Adjusting the steering wheel
_______ 124
Adjustment, seats
_______________ 120
Afterheater, V6-engine cars
________ 80
Air conditioning (A/C), fault diagnosis
and maintenance
______________ 230
Air distribution, ACC ______________ 75
Airbag
_________________________ 26
Alarm _________________________ 41
Alarm functions
__________________ 44
Alarm signals
_______________ 41
, 44
Alternator
_____________________ 202
Alternator drive belt
_________ 202
, 255
Alternator rating
________________ 254
Anticorrosion treatment
___________ 234
Antidazzle rear-view mirror
________ 126
Ashtrays
______________________ 130
Audio System
___________________ 81
Audio System, quick guide
_________ 83Autochecking of lights on starting
____54
Automatic climate control (ACC) _____70
Automatic transmission,
technical data
_________________256
BBattery
________________________199
Battery charging/replacing
________201
Battery, boost starting
____________183
Belt guide
______________________12
Boost starting using jump leads
____183
Booster cushion
_________________24
Brake and clutch fluid
____________198
Brake-fluid reservoir
_____________198
Brakes, technical data ____________257
Bulbs, changing
________________205
Bulbs, table of
__________________214
CCD changer
_____________________93
CD player
______________________91
CHECK messages
_______________61
CHECKING
_____________________61
Calibration, ACC
_________________78
Cancelling the programmed settings
_76
Car alarm
______________________41
Car care
______________________187
Car phone, installation
___________103
Cargo net, 9-5 Wagon ____________141
Carpeting, care of
_______________232Cassette player
_________________ 88
Catalytic converter,
important considerations
________ 152
Central locking
__________________ 34
Change language in SID
__________ 62
Change of address notification
____ 244
Changing a wheel
______________ 226
Changing bulbs
________________ 205
Changing the coolant
___________ 197
Changing the wheels round
_______ 222
Changing wiper blades
__________ 203
Chassis number
_______________ 259
Chassis number, key to
__________ 260
Child safety
____________________ 19
Child safety locks, rear doors
______ 37
Child seat, integral
_______________ 24
Cleaning, engine bay ____________ 233
Clock
______________________ 61
, 62
Colour code, body
______________ 259
Colour code, trim _______________ 259
Compact spare wheel
___________ 225
Condensation, ACC
______________ 79
Coolant
______________________ 196
Coolant, changing
______________ 197
Courtesy Headlight Feature
_______ 64
Cruise control
_________________ 166
Cup holder
____________________ 133
DDICE/TWICE
__________________ 216
Dampers
_____________________ 256
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