Self Study Program 941003 – Engine Management Systems

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VAG SSP 941003. The origins of Audi engine development can be traced back to a 1913 4-cylinder liquid- cooled engine designed by August Horch (1868-1951) in Zwickau, Germany. This great- grandfather of the modern Audi engine shared the same operating principles as the most modern 5-valve per cylinder water- cooled 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 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 con- sumption and tailpipe emissions.

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
Continuous Injection System
- CIS
- K-Jetronic with Lambda control
- CIS-E
- CIS-E III
- CIS Turbo
- CIS-E Motronic
Motronic M2.3.2 Overview
- System description
- Inputs/Outputs – 20 Valve Turbo Motronic M2.3.2
- Inputs/Outputs – 4.2 Liter V8 Motronic M2.3.2
- On Board Diagnostics
Motronic M2.3.2 Component Summary
- Input sensors
- Actuators (outputs)
- Review
MPI – Multi Port Fuel Injection system
- System description
- MMS 100/200 overview
- On Board Diagnostic (OBD)
- MMS 100/200 System Components
- MMS 300/311 overview, system description and comparison
OBD-II Overview
- Background
- OBD-II
- Diagnostic Trouble Codes
- Readiness Codes
- Summary
MMS 400/410/411 Overview
- Oxygen Sensor(s) (O2S) behind
- Three Way Catalyst (TWC) G130/G131
- Sensor for EVAP canister G172
- Data Link Connector (DLC)
- Secondary Air Injection (AIR)
- Leak Detection Pump (LDP) V144
Motronic M5.4.2 Overview
- System Description
- Input/Outputs – Motronic M5.4.2
- Additional Systems
- A8 Motronic M5.4.2 system overview
- Motronic M5.4.2 Components
- Input Sensors
- Actuators (outputs)
Motronic M5.9.2 Overview
- System Description
- Input/Outputs – Motronic M5.9.2
- Additional Systems
- 1.8 liter turbo, system overview
Motronic M5.9.2 Component Differences
- Engine Control Module J220
- Combined Sensors/Actuators
- Input Sensors
- Actuators (outputs)
- Review
Motronic ME 7
- Pathways
- Components of Motronic ME 7
- Electronic throttle control
- Review
Level one course preparation
- Critical Thinking Skills
- Audi Electronic Service Information Service (AESIS) navigation
- Audi HELP line/Tech-tip line
- Diagnostic and Special Tools
- Review questions
Suggested reading and reference
Glossary
Post-test

Language: English
Format: PDF
Pages: 185

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