m54 engine - BMWClub.lv

More documents

Recommendations

Info

ENGINE/VEHICLE SPEEDLIMITATIONFor engine/vehicle speed limitation, the ECM will deactivate injection for individual cylinders,allowing a smoother limitation transition. This prevents over-rev when the engine reachesmaximum RPM (under acceleration), and limits top vehicle speed (approx. 128 mph).DSCMS 43.0________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________40M54engMS43/ST039/3/17/00
RZV IGNITION SYSTEMThe Siemens MS43.0 system uses a multiple spark ignition function. The purpose of multipleignition is:• Provide clean burning during engine start up and while idling (reducing emissions).• This function helps to keep the spark plugs clean for longer service life (new BMWlonglife plugs).MS 43.0Multiple ignition is active up to an engine speed of approximately 1350 RPM (varied withengine temperature) and up to 20 degrees after TDC.Multiple ignition is dependent on battery voltage. When the voltage is low, the primary currentis also lower and a longer period of time is required to build up the magnetic field in thecoil(s).• Low battery voltage = less multiple ignitions• High battery voltage = more multiple ignitionsThe 240 ohm shunt resistor is still used on the MS43.0 system for detecting secondary ignitionfaults and diagnostic purposes.41M54engMS43/ST039/3/17/00
Page 1: Table of ContentsSubjectPageM54 Eng
Page 4 and 5: M54 ENGINEMechanical ChangesIn addi
Page 6 and 7: M54B30 ENGINE293225ART-HPCHARTB30.6
Page 8 and 9: REVIEW QUESTIONS1. What is the majo
Page 10 and 11: SYSTEM OVERVIEW I-P-OServiceEngineS
Page 12 and 13: MS 43 NEW FUNCTIONSACCELERATOR PEDA
Page 14 and 15: MS 43 NEW FUNCTIONSEDK THROTTLE POS
Page 16 and 17: MS 43 NEW FUNCTIONSMAIN RELAY MONIT
Page 18 and 19: MS 43 NEW FUNCTIONSDM-TL (DIAGNOSIS
Page 20 and 21: DM-TL (DIAGNOSIS MODULE - TANK LEAK
Page 22 and 23: LEAK DIAGNOSIS TESTPHASE 1 - REFERE
Page 24 and 25: TEST RESULTSThe time duration varie
Page 26 and 27: OXYGEN SENSOR SIGNAL INFLUENCE ON I
Page 28 and 29: CRANKSHAFT SENSORThe crankshaft sen
Page 30 and 31: EMISSIONS RELEVANT:During an interv
Page 32 and 33: MASS AIR FLOW SENSOR HFMThe Siemens
Page 34 and 35: NOTE: With extremely hot oil temper
Page 36 and 37: The dual VANOS in conjunction with
Page 38 and 39: SECONDARY AIR INJECTIONThis ECM con
Page 42 and 43: RESONANCE/TURBULENCE INTAKE SYSTEMO
Page 44 and 45: #1 Cylinder Intake Valve openLow to
Page 46 and 47: IDLE SPEED CONTROLThe ECM determine
Page 48 and 49: PURGE VALVEThe purge valve (TEV) is

m54 engine - BMWClub.lv

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?