System description, MOTRONIC2.10.2
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System description, MOTRONIC
2.10.2
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The Bosch MOTRONIC engine management system controls ignition
and fuel injection by means of a control module.
On model year 1994 and later Saab 900 cars with a normally
aspirated engine, the MOTRONIC system will be fitted as
follows:
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MOTRONIC 2.10.2 for the B206i
engine
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MOTRONIC 2.10.2 for the B234i engine
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MOTRONIC 2.8.1 for the B258i engine
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Both MOTRONIC versions have sequential injection and individual control of the
ignition timing when knocking occurs in any of the cylinders. (This function is adaptive.)
Expressed in simple terms, it could be said that the MOTRONIC system is a combination of a
conventional electronic fuel injection system and an electronic ignition system with a knock
sensor. The injection system features sequential injection while the power output stage of the
ignition system is integrated in the control module. With the introduction of Bosch
MOTRONIC, the earlier systems - LH, CU14 and EZK - are no longer used.
