1. Diesel Engine Management Systems Steve Baker

2. Diesel Engine Management Systems Steve Baker

3. Basic Diesel Fuel Delivery System 1. Fuel Return Line 2. Fuel Injection Pump 3. Injectors 4. Fuel Filter 5. Fuel Tank 6. Swirl Pot 7. Fuel Feed Line Low Pressure High Pressure Spill Return

4. Air Intake System

5. Engine Management Systems L- Series 2.0 Litre EDC 15 M47R 2.0 Litre DDE4

6. Advantages of EDC Greater Fuel Economy Reduced Exhaust Emissions Reduced Engine Noise More Effective Cold Starting Smoother Engine Operation

7. Electronic Control Module (ECM)

8. EDC 15 System Inputs

9. Crankshaft Position Sensor (CKP)

10. Injector Needle Lift Sensor

11. Coolant Temperature Sensor (ECT) Cº 

12. Manifold Absolute Pressure Sensor (MAP)

13. Throttle Potentiometer

14. Brake Pedal Switch

15. Inlet Air Temperature/Mass Air Flow Sensor (IAT/MAF)

16. Immobilisation Signal

17. Vehicle Speed Sensor

18. Inputs Ignition Switch Air Con Request

19. Inputs Trinary Switch Evaporator Temperature Sensor

20. System Outputs

21. Glow Plug

22. Malfunction Indicator Lamp (MIL)

23. Air Conditioning Compressor Switching Input ComponentOffOn Accelerator Pedal Position Sensor Above 85  Below 80  ECT Sensor 118  c (244  f)112  c (234  f) A/C Pressure Sensor Low Limit High Limit 1.6 Bar(23.2psi) 29 Bar (421 psi) 2.0 Bar (29 psi) 23 Bar (334 psi)

24. Cooling Fan Switching Input Component Fan Speed OnOff ECT Sensor: A/C Models Non A/C Models Low High 104°c(219°) 112°c(234°) 104°c(219°) 98°c (208°f) 106°c (223°f) 98°c (208°f) A/C SwitchLowWith Switch A/C Pressure Sensor High19 Bar (275 psi) 14 Bar (203psi)

25. 1.Fuel Inlet 2.Fuel Outlet (Spill) 3.Timing Device Plunger Fuel Injection Pump

26. 4.ECU (micro controller) 5.Axial Piston 6.Distributor Sleeve 7.Hydraulic Head 8.Fuel Quantity Solenoid Valve 9.Outlet to Fuel Injector 10.Non Return Valve 11.Timing Device Solenoid Fuel Injection Pump

27. 12. Timing Device Solenoid Valve 13. Intermediate Chamber 14. Cam Plate 15. Timing Ring 16. Toothed Wheel 17. Supply Pump 18. Drive Pulley 19. Drive Plate

28. Can Bus Messages

31. Exhaust Gas Recirculation

32. ROVER 25 EDC15M ECM OVERVIEW

33. ROVER 25 EDC15M ECM FUELING

34. ROVER 25 EDC15M ECM DRIVER DEMAND SENSORS

35. ROVER25 EDC15M ECM INPUTS/OUTPUTS

36. DDE 4

37. What Is Common Rail Injection? A System Where All Injectors Are Fed Via a Shared Fuel Line First Developed by Elasis in Italy First Prototype System in 1993 Idea Bought & Developed by Bosch

38. Advantages of Common Rail Injection Fuel Injected at the Exact Time Required Precise Metering of Fuel Required Constant High Fuel Pressures Optimised Fuel Consumption

39. Advantages of Common Rail Injection Reduced Emissions Very Smooth Engine Operation Allows Two Stage Injection

40. Injection Characteristics Standard Common Rail

41. Fuel Delivery System

42. Fuel Delivery Schematic 1.Pressure Sensor and Fuel Filter 2.Pressure Relief Valve 3.High Pressure Injection Pump 4.In Line Electric Fuel Pump (Medium Pressure) 5.Bi-metallic By-pass Valve 6.Fuel Cooler 7.Fuel Pump

43. Low Pressure Pump

44. High Pressure Pump

46. System Inputs

47. Crankshaft Position Sensor

48. Camshaft Sensor

49. Mass Air Flow Sensor

51. Pedal Demand Sensor

53. Coolant Temperature Sensor (ECT) Cº V

54. Coolant Temperature Sensor (ECT) Cº V

55. Low Pressure Sensor

56. High Pressure Sensor

57. Boost Pressure Sensor Pedal Switches

59. Immobilisation (EWS3)

60. Automatic Gearbox

62. System Outputs

64. Outputs Fuel Pump Relay Main Relay Air Con Relay Cooling Fan Relay

65. Outputs Fuel Pump Relay Main Relay Air Con Relays

66. Outputs Fuel Pump Relay Main Relay Air Con Relay Cooling Fan Relay

67. Fuel Pressure Regulator

68. Glow Plug ECU

69. Glow Plug Pre-heat Seconds Degrees Celsius

70. Injectors

72. Injectors Closed

73. Injectors Open

74. Injectors

75. Exhaust Gas Recirculation

76. Cruise Control Component Layout

77. Cruise Control Control Diagram

78. Cruise control

80. Cruise Control

81. Testbook Real Time Display

82. Engine Roughness

83. Engine Roughness Fuel Correction

84. Pedal Demand Sensors

85. Cruise Control