WIS Document: 2162

| | System description, MOTRONIC 2.10.2 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: | • | MOTRONIC 2.10.2 for the B206i engine | • | MOTRONIC 2.10.2 for the B234i engine | • | MOTRONIC 2.8.1 for the B258i engine 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.