18 · Technical Description
Main components of the Saab Trionic system
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The Saab Trionic system consists of the following
main compone0ts:
1 Engine control module
2 Crankshaft position sensor
3 Manifold absolute pressure sensor
4 Intake air temperature sensor
5 Temperature sensor, engine coolant
6 Throttle position sensor
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7 Front heated oxygen sensor (before three way
catalytic converter)
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8 Rear heated oxygen sensor (after three way cata-
lytic converter)
9 Ignition discharge module
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Injectors, 4
11 Boost pressure control valve
12 Idle air control valve
13 EVAP canister purge valve
14 Spark plugs
Saab 9000