Electronic Fuel Injection
£25.00
Written in 1995 this publication deals with systems from the 1970s, 1980s and early 1990s, as found in many modern classics, mostly without self-diagnostics, prior to OBD2. This ebook is intended for the technician or enthusiast who seeks a thorough knowledge of how Electronic Fuel Injection, Electronic Ignition, Engine Management, and Emission Control systems are developed, how they function, what happens when they go wrong and how they can be adjusted and repaired. It is not intended as a reference book just to look up relevant information from an index. It has been written with the aim that the reader will find it sufficiently interesting to read in its entirety and develop a full mental picture of this advancing technology.
The only things expected from the reader are a basic knowledge of engine technology and elementary electric circuit principles, and an interest in getting to grips with an important subject. A substantial glossary of terms has been provided in Appendix 1 for the reader to refer to when
meeting an unfamiliar expression.
Please note that this is an e-dossier, in pdf format, archived for ease of download. It is not a physical book..
CONTENTS.
Chapter 1. THE FUNDAMENTALS - COMBUSTION, FUELLING, IGNITION, and EXHAUST EMISSIONS.
The combustion process. Detonation, preignition & pinking. Combustion chamber layout. What the engine expects from fuel and ignition systems. Emissions - HC, CO, NOX, etc. EGR, Lambda and LAP sensors. Catalysts. Lean burn. Economy. Evaporative loss control.
Chapter 2. FUEL HANDLING.
Basic principles. Tanks, breathers, vapour traps. Fuel pump and control. Recirculation principle. Twin tank systems. Pressure regulation. Pulsation damping. Injectors - construction, flow rates, failures. Single Point Injectors.
Chapter 3. THE AIRFLOW TRACT.
Intake ducting. Noise & resonance chambers. Variable geometry. Throttle assembly. Idle speed control. Over-run valves. Tuned ram manifolds. Injector location.
Chapter 4. EFI ELECTRICAL OPERATING PRINCIPLES.
Injector Pulses. Injector action in detail. Injector drive circuitry. Injection timing, sequential injection. Over-run cut off. Sensors. ECU principles. Analogue and digital differences. Fuel laws and maps. Interference screening.
Chapter 5. FIRST GENERATION ELECTRONIC INJECTION.
Bosch D Jetronic - ancestor of them all. Sensors. Triggering. Cold start injection. Jaguar V12 variant 3CU. Problem areas. Lucas Epitest.
Chapter 6. SECOND GENERATION EFI - BOSCH L JETRONIC AND FRIENDS.
L Jetronic principles. Flap airflow meter. Problem areas. LE Jetronic. Electronic idle speed control. Lucas L 4CU (Rover V8). Lucas P 6CU, 8CU (Jaguar V12, 3.6 XJS). Mercury Marine V6.
Chapter 7. THIRD GENERATION EFI - ELECTRONIC SOPHISTICATION.
Understanding microprocessor based systems. Adding features to the program. Memory, EPROMS etc. Bits & Bytes. Sensor scanning. Practical mapping. Lucas 16CU (Jaguar V12). Idle speed control considerations and solutions. Hot wire airflow meter. LH Jetronic. Lucas hot wire (Rover Montego etc.) Adaptive memory. Fault detection. Limp home. Data logging. Lucas 13 & 14 CU (Rover V8).Lucas 26CU (Jaguar V12). Single Point Systems, Bosch Monojetronic, etc.
Chapter 8. THE IGNITION SYSTEM.
The contact breaker system - why it is no longer good enough. Early transistor assisted types. Triggering methods and pickups. Lucas Opus. Constant energy types. CDI. Programmed advance curves - influence on power, economy and emissions. Lucas digital. Ford DIS. Microprocessor systems. Knock sensors. Octane plug. Load sensing. Multiple and missing tooth triggering methods. Rover system. Bosch. Ford ESC 2. Marelli Digital. SAAB Direct Ignition.
Chapter 9. TRUE ENGINE MANAGEMENT - FUEL AND IGNITION ALL IN ONE.
Advantages of an integrated system. Basic principles. Bosch Motronic. Ford EEC1V - 2.9 & Zeta variants. Rover MEMS. Honda PCM-PI, V-Tec, LAP sensor, Dual Point Injection. Toyota TCCS. GM system. Lucas 9CU (Jaguar 3.6). Lucas 15CU (Jaguar 4.0). Things to come. Drive by wire. Advanced fault detection and diagnosis. A note of caution.
Chapter 10. DIAGNOSIS, FAULT FINDING AND ADJUSTMENTS - THE TRADITIONAL WAY. ii
Basic approach to diagnosis. Dead Engine faults. Running engine faults. Exhaust gas analysis as an aid to diagnosis. Catalysts. Spark plugs. Fuel handling faults. Air tract faults. Electrical faults. Ignition.
Chapter 11. DIAGNOSIS, FAULT FINDING AND ADJUSTMENTS - THE HIGH-TECH WAY.
Trouble in store? - the drawbacks of high technology. Manufacturer's plug-in diagnostic techniques. Typical evolution path - Rover FastCheck-Cobest Microcheck-TestBook. Similar solutions for the independent garage - Survey of scanners - Datacheck, Code Reader, AutoScan, Laser 200, Snap-On MT2500, Crypton CheckMate etc. The break out box. Oscilloscopes.
Chapter 12. FACTS, MYTHS, OLD WIVES TALES AND DOWNRIGHT LIES.
Power claims - how to see through them. Performance camshafts. Acceleration times and maximum speed. More fuel, boost and power. The low down on chip tuning. ECU repairs and dubious checking methods. Aftermarket catalysts. Bogus economy and performance enhancers. Big talking Waiter Mitty the engine designer.
Appendix 1. GLOSSARY OF TERMS.
12 pages explaining technical terms, buzzwords etc.
Appendix 2. ON-BOARD DIAGNOSTICS.
The story of the important diagnostic standards OBD1 & OBD2 devised by the California Air Resources Board and now accepted World-wide.
Appendix 3. THE AJ6 IGNITION & INJECTION TESTER.
An established and easy to use instrument that can fire coils, injectors, etc. and detect pickup trigger signals.
Appendix 4. BASIC TESTS WITH A MULTIMETER.
Using an inexpensive multimeter to check through a system.
Appendix 5. THE LABORATORY OSCILLOSCOPE - AN INEXPENSIVE AND VERSATILE INSTRUMENT.
Introduction to the conventional laboratory oscilloscope. How to use this very useful instrument to look at what happens in an automotive system.
Additional information
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