29 Jun. 2009

Detailed description of the DMS 1-3 Electronic Diesel control, diagnostics training seminar (2 days).

This training seminar is at a level parallel to the DMS 1-1 and DMS 1-2 training. It is not necessary to have attended the DMS 1-1 or DMS 1-2 training first, however it is strongly advisable to have completed the AED seminar first.

There are currently no big changes planned for automotive Diesel technology, other than some slight changes to the current suction control valve system and common rail injector technology. All car makes will soon have common rail implemented on all their Diesel vehicles.



In this seminar the Denso common rail system is covered in great detail, with the Mitsubishi 4M41 CR engine management system with the HP3 injector pump as backbone. We will be covering other systems too by high lighting the differences.
Upon completion, the interrelation of all components including the ECU and all sensors and actuators will be clearly understood, so that during fault finding a diagnostic conclusion can be accurately and efficiently made.

• Chapter 1 covers:
  Introduction
  
  
• Chapter 2 covers:
  General outline of the Denso common rail system and comparisons with other brands CR systems will be made.
  
  
• Chapter 3 covers:
  Overview of injection quantity and timing control, and the relation between mechanical Diesel and CR Diesel. ECU control of injectors.
  
  
• Chapter 4 covers:
  Crankshaft sensor diagnostics, timing calculations, to be able to spot timing problems and their causes.
  
  
• Chapter 5 covers:
  Camshaft sensor construction and diagnostics.
  
  
• Chapter 6 covers:
  Vehicle Speed sensor and its effect on the injection quantity control.
  
  
• Chapter 7 covers:
  Accelerator position sensor, dual analogue Hall sensor construction and fault diagnostics. Its trigger points, what faults are acceptable in the signal and what causes delayed throttle response.
  
  
• Chapter 8 covers:
  Engine coolant temperature sensor signals and the effect on injection timing and pre-injection pulse width.
  
  
• Chapter 9 covers:
  Fuel temperature sensor, diagnostics and effect on running of the engine.
  
  
• Chapter 10 covers:
  Intake air temperature sensor/s, and their relation during turbo boost.
  
  
• Chapter 11 covers:
  Airmass Sensor construction and dynamics. In depth fault diagnostics, the effect on boost, injection quantity and EGR.
  
  
• Chapter 12 covers:
  Intake manifold pressure sensor. In depth fault diagnostics, also the effect on boost, injection quantity and EGR.
  
  
• Chapter 13 covers:
  Rail pressure sensor construction, signal interpretation, using electronic signals to carry out mechanical fault diagnostics on for example the injection pump and injectors.
  
  
• Chapter 14 covers:
  Suction control valve internal description, electronic duty cycle control, signal understanding, the need for pump learning mode, etc.
  
  
• Chapter 15 covers:
  High pressure pump and its timing setup, mechanical understanding of pump and fuel system and relation to fuel pressure sensor.
  
  
• Chapter 16 covers:
  Throttle body functions, construction, electric motor diagnostics. Throttle body feedback system construction and diagnostics.
  
  
• Chapter 17 covers:
  EGR control system, stepper motor control, its position sensor diagnostics and dual feed back system.
  
  
• Chapter 18 covers:
  VNT turbo system, Variable nozzle turbo description, fault diagnostics.
  
  
• Chapter 19 covers:
  Glow system operation, timing and diagnostics.
  
  
• Chapter 20 covers:
  Emissions, elaboration on emission values, catalyst operation and dynamics.
  
  
• Chapter 21 covers:
  Diesel particulate filter system operation, regeneration, emission values. The DPF temperature, ambient pressure and differential pressure sensors.
  
  

During the training seminar measurements will be made on most components. The explanations are clear and straightforward to understand. A comprehensive 95 page manual will be yours.
Individual component testing and understanding will become easy and the role and effect of each component in the overall system will be fully understood.

Quote:
After Chris from Truck Specialists Nelson Ltd attended the DMS1-3 training seminar in Nelson (14-May-10).
Chris wrote as comment in the evaluation form that as most value to him was: "The Complete content of the course"

This diagnostic course's content is very practical and can be used immediately with no special tools required other than a fast and accurate dual channel scope (25 MS/sec or more for e.g. CAN data bus diagnostics).
Our ATS Scopes will be available during the course, but you are encouraged to bring your own tool to use during the training.

Pre requisite: From our experience we advise that the diagnostician has completed the AED 'Automotive Electronic Diagnostic' 2 day training seminar, regardless of achieved level through other training systems or experience!


Successful completion of this course will result in gained knowledge and experience in

• All popular common rail diesel engine management systems (emphasis on Denso).
• Diagnosing current faults, preventing and finding looming faults.
• Approaching the system with a wide, comprehensive view with in-depth electronic and mechanical system specific knowledge.
• Finding drivability problems and satisfying customer demands in a minimum of time.
• Measuring and comprehending all the system's electronic signals.
• The mechanical and electronic workings of all the common rail system components.


Following DMS 1-3 is the DMS 2-1 seminar, click here for the next stage.



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