174 Car careSaab 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.
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.
ORVR (Onboard Refueling Vapor
Recovery)All hydrocarbons formed when refueling will
be recovered by the car and not released
into the atmosphere. The hydrocarbons are
absorbed in an evaporative emission canis-
ter. When the engine is subsequently
started, the evaporative emission canister is
gradually purged as air is sucked into it
through a shut-off valve. The hydrocarbon/
air mixture passes through the evap canis-
ter purge valve and into the engine where it
is burned. "Refueling", see page 128.
When refueling, make sure you screw the
filler cap on and keep turning until it has
clicked 1 time. Otherwise, it is possible for
the Engine malfunction (CHECK ENGINE)
light to illuminate. The following message
will appear on the SID:
NOTICEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the Engine
malfunction (CHECK ENGINE) light in
the main instrument illuminates, 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.
Tighten fuel filler cap.
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249 Technical data
Warning and indications that can be
shown on the SIDSymbol Text
Antilock brake malfunction.
Contact Saab dealer.
Brake malfunction.
Make a safe stop.
Contact Saab dealer.
Brake fluid level low.
Make a safe stop.
Contact Saab dealer.
Release park brake.
Oil pressure low.
Make a safe stop.
Turn off engine.
Low engine oil level.
Fill oil now.
Engine malfunction.
Contact Saab dealer.
Reduced engine power.
Contact Saab dealer.
Coolant level low.
Refill.
Hot engine.
Make a safe stop.
Run engine on idle.
Airbag malfunction.
Contact Saab dealer.
Use your seatbelt.
Gearbox malfunction.
Limited performance.
Contact Saab dealer.
Gearbox too hot.
Make a safe stop.
Open hood to cool down.
Battery not charging.
Make a safe stop.
Contact Saab dealer.
A/C off due to high engine
temperature.
Headlight levelling
malfunction.
Contact Saab dealer.
Tap brakes lightly before
using cruise control.
Traction control failure.
Contact Saab dealer.
Stability control failure.
Contact Saab dealer.
Washer fluid level low.
Refill.
Key not accepted.
Contact Saab dealer.
Remote control battery low.
Replace battery.
X: standard key
Y: va l e t key
Key No: Z
Lock system failure.
Contact Saab dealer.
Steering lock malfunc.
Make a safe stop.
Contact Saab dealer.
Steering wheel locked.
Pull out key, turn steering
wheel. Try again.
Immobilizer failure.
Try starting again.
Contact Saab dealer.
Theft protection failure.
Contact Saab dealer.
Alarm has been triggered
since being armed.
Tighten fuel filler cap.
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