Computerized Engine Controls

by Hatch, Steve V.

• ISBN13: 9781418011390
• ISBN10: 1418011398
• Edition: 7th
• Format: Paperback
• Copyright: 2005-11-04
• Publisher: Cengage Learning

Summary

For technicians who are interested in increasing their diagnostic effectiveness on today's vehicle electronic systems, this book is an absolute "must"! Computerized Engine Controls, 7E tackles both domestic and import engine control systems to help with the understanding of underlying automotive operating principles and concepts needed to diagnose and repair any electronic system on any vehicle. Thoroughly updated to offer insight into the latest technological advances found on today's roads and highways, the 7th Edition examines such cutting-edge topics as hybrid and fuel cell vehicles, GM's 42-volt system, hexadecimal conversion and OBD II, multiplexing, and more.

Table of Contents

Preface	vii
Acknowledgments	xi
Introduction: A Review of Electricity and Electronics	1	(1)
Electrical Circuits versus Electronic Circuits	1	(1)
Electron Theory	2	(2)
Magnetism	4	(7)
Conductors and Insulators	11	(1)
Circuits	12	(4)
Polarity	16	(1)
Circuit Faults	17	(1)
Semiconductors	18	(9)
Integrated Circuits (ICs)	27	(2)
Computers in Cars	29	(18)
Objectives	29	(1)
Key Terms	29	(1)
Why Computers?	29	(7)
Exhaust Gases	36	(4)
Economy and Driveability	40	(2)
Attitude of the Technician	42	(1)
System Diagnosis and Service	42	(1)
Summary	43	(1)
Diagnostic Exercise	44	(1)
Review Questions	44	(3)
Common Components for Computerized Engine Control Systems	47	(30)
Objectives	47	(1)
Key Terms	47	(1)
Common Features	47	(3)
Sensing Devices	50	(17)
Actuators	67	(4)
System Diagnosis and Service	71	(2)
Summary	73	(1)
Diagnostic Exercise	73	(1)
Review Questions	73	(4)
Common Operating Principles for Computerized Engine Control Systems	77	(28)
Objectives	77	(1)
Key Terms	77	(1)
Electronic Fuel Injection System Operating Principles	77	(12)
Ignition System Operating Principles	89	(7)
Emission-Control Systems	96	(4)
Variable Valve Timing	100	(1)
42-Volt Systems	100	(1)
Summary	101	(1)
Diagnostic Exercise	102	(1)
Review Questions	102	(3)
Diagnostic Concepts	105	(10)
Objectives	105	(1)
Key Terms	105	(1)
Types of Faults	105	(1)
Diagnostic Trouble Codes (DTCs)	106	(1)
Data Streams	107	(1)
Functional Tests	107	(1)
Pinpoint Testing	108	(1)
Flowcharts	109	(1)
Electrical Schematics	109	(2)
Other General Diagnostic Concepts	111	(1)
Summary	111	(1)
Diagnostic Exercise	111	(1)
Review Questions	112	(3)
Diagnostic Equipment	115	(26)
Objectives	115	(1)
Key Terms	115	(1)
Scan Tools	115	(3)
Breakout Boxes	118	(1)
Nonpowered Test Lights	119	(1)
Logic Probes	120	(1)
Digital Volt-Ohmmeters (DVOMs)	121	(8)
Digital Storage Oscilloscopes (DSOs)	129	(7)
Safety Considerations When Using a DVOM or DSO	136	(1)
Gas Analyzers	137	(1)
Summary	138	(1)
Diagnostic Exercises	138	(1)
Review Questions	138	(3)
Exhaust Gas Analysis	141	(16)
Objectives	141	(1)
Key Terms	141	(1)
Theory of Gas Analysis	141	(2)
Measured Gasses	143	(3)
Gas Analyzers	146	(4)
Diagnosing with the Gasses	150	(3)
Summary	153	(1)
Diagnostic Exercise	153	(1)
Review Questions	153	(4)
OBD II Self-Diagnostics	157	(28)
Objectives	157	(1)
Key Terms	157	(1)
CARB/EPA/SAE/OBD Background	157	(1)
Why OBD II?	158	(1)
What Does OBD II Do?	159	(1)
Standardization	160	(6)
Monitoring Conditions	166	(3)
Setting DTCs and Turning on the MIL	169	(1)
Diagnostic Management Software	169	(1)
Monitoring Sequences	170	(9)
Cold-Start Emissions Reduction	179	(1)
Diagnostic Equipment	179	(2)
Summary	181	(1)
Diagnostic Exercises	181	(1)
Review Questions	182	(3)
Multiplexing Concepts	185	(14)
Objectives	185	(1)
Key Terms	185	(1)
Multiplexing Overview	186	(1)
Multiplex System Designs	187	(3)
Multiplexing Protocols	190	(2)
Communication on a J1850 VPW Data Bus	192	(1)
Multiplexing Variations	193	(1)
Diagnosis of Multiplexed Circuits	194	(1)
Summary	195	(1)
Diagnostic Exercise	195	(1)
Review Questions	195	(4)
General Motors' Electronic Fuel Injection	199	(32)
Objectives	199	(1)
Key Terms	199	(1)
Powertrain Control Module	200	(1)
Operating Modes	201	(2)
Inputs	203	(4)
Outputs	207	(15)
System Diagnosis and Service	222	(6)
Summary	228	(1)
Diagnostic Exercise	228	(1)
Review Questions	228	(3)
General Motors and Port Fuel Injection	231	(48)
Objectives	231	(1)
Key Terms	231	(1)
Powertrain Control Module (PCM)	232	(1)
Operating Modes	232	(2)
Fuel Supply System	234	(3)
Injectors	237	(1)
Throttle Body	237	(1)
Non-PCM Emission Controls	238	(1)
Inputs	238	(11)
Outputs	249	(23)
System Diagnosis and Service	272	(4)
Summary	276	(1)
Diagnostic Exercises	276	(1)
Review Questions	276	(3)
Cadillac's Digital Fuel Injection	279	(40)
Objectives	279	(1)
Key Terms	279	(2)
Powertrain Control Module (PCM)	281	(2)
Operating Modes	283	(1)
Inputs	284	(2)
Outputs	286	(13)
Body Control Module (BCM)	299	(8)
System Diagnosis and Service	307	(9)
Cadillac Diagnostic Update	316	(1)
Summary	316	(1)
Diagnostic Exercise	316	(1)
Review Questions	316	(3)
Advanced General Motors Engine Controls	319	(34)
Objectives	319	(1)
Key Terms	319	(1)
Northstar Engine Overview	320	(5)
Northstar Inputs/Outputs	325	(11)
Cadillac LH2 Northstar Upgrades	336	(3)
Cadillac HFV6	339	(1)
GM Generation III Smallblock V8s	340	(2)
GM Generation IV Smallblock V8s	342	(1)
GM Displacement on Demand (DOD) System	343	(1)
GM 42-Volt Hybrid Silverado	344	(4)
GM Voice Recognition/Navigational System	348	(1)
System Diagnosis and Service	348	(1)
Summary	349	(1)
Diagnostic Exercise	350	(1)
Review Questions	350	(3)
Ford's Electronic Engine Control IV (EEC IV)	353	(68)
Objectives	353	(1)
Key Terms	353	(1)
Powertrain Control Module (PCM)	354	(1)
Operating Modes	355	(6)
Inputs	361	(19)
Outputs	380	(27)
System Diagnosis and Service	407	(11)
Summary	418	(1)
Diagnostic Exercise	418	(1)
Review Questions	418	(3)
Ford's Electronic Engine Control V (EEC V)	421	(28)
Objectives	421	(1)
Key Terms	421	(1)
Engine Controls	422	(1)
Inputs	422	(3)
Outputs	425	(5)
Emission Controls	430	(3)
Advanced Ford Computer System Features	433	(11)
System Diagnosis and Service	444	(2)
Summary	446	(1)
Diagnostic Exercise	446	(1)
Review Questions	446	(3)
DaimlerChrysler Fuel Injection Systems	449	(40)
Objectives	449	(1)
Key Terms	449	(1)
Powertrain Control Module (PCM)	450	(5)
Inputs	455	(12)
Outputs	467	(11)
DaimlerChrysler Multiplexing Systems	478	(1)
Advanced DaimlerChrysler Electronic Systems	479	(3)
System Diagnosis and Service	482	(3)
Summary	485	(1)
Diagnostic Exercise	486	(1)
Review Questions	486	(3)
European (Bosch) Engine Control Systems	489	(30)
Objectives	489	(1)
Key Terms	489	(1)
System Overview	490	(3)
Continuous Injection System (CIS)	493	(1)
Pulsed Systems	494	(2)
Motronic	496	(1)
Control Unit	496	(1)
Operating Modes	497	(4)
Inputs	501	(4)
Outputs	505	(8)
Bosch OBD II Update	513	(1)
System Diagnosis and Service	514	(1)
Summary	514	(1)
Diagnostic Exercise	514	(1)
Review Questions	514	(5)
Asian Computer Control Systems	519	(40)
Objectives	519	(1)
Key Terms	519	(1)
Nissan: Electronic Concentrated Control System (ECCS)	520	(2)
Inputs	522	(6)
Outputs	528	(4)
System Diagnosis and Service	532	(1)
Toyota Computer-Controlled System (TCCS)	532	(1)
Inputs	533	(2)
Outputs	535	(7)
System Diagnosis and Service	542	(2)
Honda: Programmed Fuel Injection (PGM-FI)	544	(1)
Inputs	544	(5)
Outputs	549	(5)
System Diagnosis and Service	554	(1)
Summary	555	(1)
Diagnostic Exercise	555	(1)
Review Questions	555	(4)
Alternative Power Sources	559	(18)
Objectives	559	(1)
Key Terms	559	(2)
Honda Insight, Civic, and Accord Hybrids	561	(2)
Toyota Hybrid System (THS)	563	(5)
Ford Escape Hybrid	568	(2)
Fuel Cell Vehicles	570	(3)
System Diagnosis and Service	573	(1)
Summary	574	(1)
Diagnostic Exercise	574	(1)
Review Questions	574	(3)
Appendix A: Approach to Diagnostics	577	(6)
Collecting the Evidence	577	(1)
Hard Fault Diagnosis	578	(2)
Soft Fault Diagnosis	580	(1)
Verifying PCM Control of the Air/Fuel Ratio	581	(1)
Summary	582	(1)
Appendix B: Terms and Acronyms	583	(8)
Glossary	591	(14)
Index	605