Self Study Program 841003 – Engine Management Systems
VAG SSP 841003. The origins of Volkswagen engine development can be traced back to a 1912 horizontally-opposed air-cooled overhead valve aircraft engine designed and built by Dr. Ferdinand Porsche in Austria. This great-grandfather of the air-cooled Volkswagen engine shared the same operating principles as the most modern 5 valve per cylinder watercooled automotive engine.
Both engines are four-stroke reciprocating internal combustion engines and, although a direct comparison cannot be made, the basic operating principles remain the same.
Technology moved the four-stroke engine from magnetos and carburetors, to ignition coils, points, distributors, mechanical fuel injection, hydraulic fuel injection, electronic ignition, electronic fuel injection, and finally to the combined fuel and ignition control of the most modern Motronic engine management systems.
Motronic engine management systems use electronics to precisely monitor and control every aspect of engine operation, thereby improving efficiency, power, and driveability, while at the same time reducing fuel consumption and tailpipe emissions.
Motronic engine management systems control engine operation so precisely that it is no longer possible to identify a separate emissions system. All functions previously identified as emissions system functions are now components of Motronic engine management.
The intent of this program is to provide information that will yield a greater understanding of engine management systems commonly in use, and the progression leading to the newest Motronic ME 7 systems.
Course goals
- Review principles of engine operation
- Explain the progression of engine management systems used by Volkswagen
- Provide an in-depth understanding of both previous engine management systems, and
the state-of-the-art engine management systems in use today
CONTENTS
- Introduction
- Course goals
- Principles of engine operation
- Basic four-stroke principle
- Gasoline properties
- Air/fuel mixture formation
- Fuel system, overview
- Evolution of Engine Management Systems
- Ignition system, overview
- Emissions system, overview
- Three-way Catalytic Converter, overview
- On Board Diagnostics
- Review
- K-Jetronic/CIS
- K-Jetronic with Lambda control
- KE-Jetronic/CIS-E
- KE-Motronic/CIS-E Motronic
- Digifant System Overview
- System description
- Inputs/Outputs – Digifant II
- Additional systems
- On Board Diagnostics
- Summary
- Review
- Notes:
- Motronic M2.9 Overview
- System description
- Inputs/Outputs – Motronic M2.9
- On-Board Diagnostics
- Signal usage
- Motronic M2.9 Component Summary
- Fuel system components
- Engine Control Module (ECM) J220
- Input sensors
- Actuators (outputs)
- Review
- Mono-Motronic System Overview
- System Description
- Inputs/Outputs
- Additional Systems
- On Board Diagnostics
- Summary
- OBD-II Overview
- Background
- OBD-II
- OBD-II Function
- Diagnostic Trouble Codes
- Readiness Codes
- Summary
- Motronic M5.9 Overview
- System Description
- Input/Outputs – Motronic M5.9
- Additional Systems
- VR-6 system overview
- Inputs/Outputs – Motronic M5.9.2
- 1.8 liter turbo, system overview
- Motronic M5.9 Component Differences
- Engine Control Module J220
- Combined Sensors/Actuators
- Input sensors
- Actuators (outputs)
- Motronic M5.9.2 Component Differences
- Engine Control Module J220
- Input Sensors
- Heated Oxygen Sensors
- Actuators (outputs)
- Review
- Motronic ME 7
- Pathways
- Components of Motronic ME 7
- Electronic throttle control
- Review
- Level one course preparation
- Critical Thinking Skills
- Volkswagen Electronic Service Information System (VESIS) navigation
- Volkswagen HELP line/Tech-tip line
- Diagnostic and Special Tools
- Review questions
- Suggested reading and reference
- Glossary
- Volkswagen Engine Management Systems Teletest
Language: English
Format: PDF
Pages: 148
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