Car wiring diagrams: Bmw E36 Engine Harness Connector, wiring diagram, wire wiring harness, schematic circuit diagram, wiring diagran, wireing diagram, wirring diagram, wiring daigram, wiring diagrams. The Bosch Motronic Engine Management system is what controls the ignition, timing and emissions controls of the later model series cars. As such, it can be .The most common task to do on your BMW the cylinder and cylinder engines are covered here..Color Pin is. Color Pin I IS. E Connector engine side Pin alternator charge blue. Pin alternator charge blue. Pin Blue. Pin coolant tem .