Ignition/engine management systems BMW 7 Series E38
Engine Electrical System Specifications Battery voltage, V 12 The order of operation of the cylinders 6-cylinder engines 1-5-3-6-2-4 8-cylinder engines 1-5-4-8-6-3-7-2 12-cylinder engines...
Basic Information and Safety Precautions System ignition provides ignition of the air-fuel mixture supplied to the combustion chambers of the cylinders of gasoline engines. To form a spark of the...
Diagnostics of the engine management system On-board self-diagnosis system (OBD) Models equipped with a second generation on-board diagnostics system (OBD II). The OBD II system data is read using a...
Replacing spark plugs and ignition coils A description of the replacement of spark plugs is given in Section Replacing spark plugs Chapters Vehicle settings and routine maintenance . The replacement...
Replacing the ignition distributor rotors 1. Turn off the ignition and remove the engine cooling fan (see chapter Engine cooling, heating, ventilation and air conditioning systems ). 2. Remove the...
Replacing glow plugs 1. Disconnect the negative cable from the battery. 2. On models with an M67 cy engine, a decorative engine cover; on other models, remove the intake manifold...
Removal and installation of ECM 1. Loosen the screws and remove the control electronics cover. 2. Disconnect the connector (s) and remove the control box. Removal of ECM engines M51, M52,...
Replacing the sensors of the engine management system 1. The procedure for replacing sensors is to disconnect the connector and unscrew or remove the sensor. 2. The engine oil temperature and pressure sensors are...