Computerized Engine Controls

by Hatch, Steve V.

• ISBN13: 9781428399969
• ISBN10: 1428399968
• Edition: 8th
• Format: Paperback
• Copyright: 2008-06-12
• Publisher: Cengage Learning

Summary

Get the resource no technician should be without! Now in its 8th edition, Computerized Engine Controls continues the tradition of its predecessors: strong, solid coverage of both domestic and import engine control systems, which provides readers with the foundational knowledge 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 8th 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. This updated edition also includes new content that will help electrical concepts come alive and all-new coverage of logic gates, taking the magic and mystery out of the computer. For technicians who are interested in increasing their diagnostic effectiveness on today's vehicle electronic systems, this book is an absolute "must"!

Author Biography

Steve V. Hatch is a Professor at the Lincoln College of Technology, Denver Campus, formerly the Denver Automotive and Diesel College

Table of Contents

Preface	p. vii
Acknowledgments	p. xi
A Review of Electricity and Electronics	p. 1
Objectives	p. 1
Key Terms	p. 1
Electrical Circuits versus Electronic Circuits	p. 2
Electron Theory	p. 3
Electrical Theory	p. 5
Electrical Circuits	p. 14
Polarity	p. 20
Circuit Faults	p. 20
Semiconductors	p. 22
Integrated Circuits	p. 37
The Digital Age	p. 37
Summary	p. 39
Diagnostic Exercise	p. 39
Review Questions	p. 39
Computers in Cars	p. 43
Objectives	p. 43
Key Terms	p. 43
Why Computers?	p. 43
How Computers Work	p. 47
Functions of the Engine Computer	p. 61
Controlling Exhaust Gasses	p. 63
Closed Loop and Open Loop Operation	p. 64
The PCM and Exhaust Emissions	p. 66
Attitude of the Technician	p. 66
System Diagnosis and Service	p. 66
Summary	p. 67
Diagnostic Exercise	p. 68
Review Questions	p. 68
Common Components for Computerized Engine Control Systems	p. 71
Objectives	p. 71
Key Terms	p. 71
Common Features	p. 71
Sensing Devices	p. 74
Actuators	p. 93
System Diagnosis and Service	p. 96
Summary	p. 98
Diagnostic Exercise	p. 99
Review Questions	p. 99
Common Operating Principles for Computerized Engine Control Systems	p. 103
Objectives	p. 103
Key Terms	p. 103
Electronic Fuel Injection System Operating Principles	p. 103
Ignition System Operating Principles	p. 116
Emission-Control Systems	p. 122
Variable Valve Timing	p. 130
42-V Systems	p. 130
Summary	p. 132
Diagnostic Exercise	p. 132
Review Questions	p. 132
Diagnostic Concepts	p. 135
Objectives	p. 135
Key Terms	p. 135
Types of Faults	p. 135
Diagnostic Trouble Codes	p. 136
Data Streams	p. 138
Functional Tests	p. 138
Technical Service Bulletins	p. 139
Pinpoint Testing	p. 139
Flowcharts	p. 144
Electrical Schematics	p. 144
Other General Diagnostic Concepts	p. 146
Summary	p. 147
Diagnostic Exercise	p. 147
Review Questions	p. 147
Diagnostic Equipment	p. 149
Objectives	p. 149
Key Terms	p. 149
Scan Tools	p. 149
Breakout Boxes	p. 153
Non-Powered Test Lights	p. 154
Logic Probes	p. 155
Digital Volt-Ohmmeters	p. 156
Digital Storage Oscilloscopes	p. 166
Safety Considerations When Using a DVOM or DSO	p. 180
Gas Analyzers	p. 181
Summary	p. 181
Diagnostic Exercises	p. 181
Review Questions	p. 181
Exhaust Gas Analysis	p. 185
Objectives	p. 185
Key Terms	p. 185
Theory of Gas Analysis	p. 185
Measured Gasses	p. 187
Gas Analyzers	p. 192
Diagnosing with the Gasses	p. 195
Summary	p. 197
Diagnostic Exercise	p. 198
Review Questions	p. 198
OBD II Self-Diagnostics	p. 201
Objectives	p. 201
Key Terms	p. 201
CARB/EPA/SAE/OBD Background	p. 201
Why OBD II?	p. 202
What Does OBD II Do?	p. 202
Standardization	p. 204
Monitoring Conditions	p. 212
Setting DTCs and Turning on the Mil	p. 214
Diagnostic Management Software	p. 215
OBD II Monitors	p. 216
Cold Start Emissions Reduction	p. 225
Diagnostic Equipment	p. 226
Summary	p. 228
Diagnostic Exercise	p. 228
Review Questions	p. 228
Multiplexing Concepts	p. 231
Objectives	p. 231
Key Terms	p. 231
Multiplexing Overview	p. 232
Multiplex System Designs	p. 234
Multiplexing Protocols	p. 236
Communication on a J1850 VPW Data Bus	p. 238
Communication on a CAN Data Bus	p. 240
Multiplexing Variations	p. 241
Other Bosch Protocols	p. 243
Diagnosis of Multiplexed Circuits	p. 243
Summary	p. 244
Diagnostic Exercise	p. 244
Review Questions	p. 245
General Motors' Electronic Fuel Injection	p. 247
Objectives	p. 247
Key Terms	p. 247
Powertrain Control Module	p. 248
Operating Modes	p. 250
Inputs	p. 252
Outputs	p. 256
Body Control Module	p. 277
System Diagnosis and Service	p. 279
Summary	p. 285
Diagnostic Exercise	p. 286
Review Questions	p. 286
General Motors and Port Fuel Injection	p. 289
Objectives	p. 289
Key Terms	p. 289
Powertrain Control Module	p. 290
Operating Modes	p. 291
Fuel Supply System	p. 292
Injectors	p. 295
Throttle Body	p. 295
Non-PCM Emission Controls	p. 296
Inputs	p. 296
Outputs	p. 307
System Diagnosis and Service	p. 328
Summary	p. 333
Diagnostic Exercise	p. 334
Review Questions	p. 334
Advanced General Motors Engine Controls	p. 337
Objectives	p. 337
Key Terms	p. 337
Northstar Engine Overview	p. 338
Northstar Inputs/Outputs	p. 342
Cadillac LH2 Northstar Upgrades	p. 353
Cadillac HFV6	p. 357
GM Generation III Small-Block V8s	p. 357
GM Generation IV Small-Block V8s	p. 360
GM Active Fuel Management System	p. 360
Flywheel Alternator Starter System	p. 362
Belt Alternator Starter System	p. 367
GM Voice-Recognition/Navigational System	p. 368
System Diagnosis and Service	p. 368
Summary	p. 369
Diagnostic Exercise	p. 370
Review Questions	p. 370
Ford's Electronic Engine Control IV (EEC IV)	p. 373
Objectives	p. 373
Key Terms	p. 373
Powertrain Control Module	p. 376
Operating Modes	p. 376
Inputs	p. 381
Outputs	p. 399
System Diagnosis and Service	p. 427
Summary	p. 438
Diagnostic Exercise	p. 438
Review Questions	p. 438
Ford's Electronic Engine Control V (EEC V)	p. 441
Objectives	p. 441
Key Terms	p. 441
Engine Controls	p. 442
Inputs	p. 442
Outputs	p. 445
Emissions Controls	p. 450
Advanced Ford Computer System Features	p. 454
System Diagnosis and Service	p. 465
Summary	p. 46
Diagnostic Exercise	p. 467
Review Questions	p. 467
Chrysler Corporation Fuel Injection Systems	p. 471
Objectives	p. 471
Key Terms	p. 471
Powertrain Control Module	p. 472
Inputs	p. 477
Outputs	p. 489
Chrysler Multiplexing Systems	p. 500
Advanced Chrysler Electronic Systems	p. 501
System Diagnosis and Service	p. 504
Summary	p. 507
Diagnostic Exercise	p. 508
Review Questions	p. 508
European (Bosch) Engine Control Systems	p. 511
Objectives	p. 511
Key Terms	p. 511
System Overview	p. 512
Continuous Injection System	p. 515
Pulsed Systems	p. 516
Motronic	p. 518
Electronic Control Unit	p. 518
Operating Modes	p. 519
Inputs	p. 523
Outputs	p. 527
Bosch OBD II Update	p. 535
System Diagnosis and Service	p. 536
Summary	p. 536
Diagnostic Exercise	p. 536
Review Questions	p. 537
Asian Computer Control Systems	p. 541
Objectives	p. 541
Key Terms	p. 541
Nissan: Electronic Concentrated Control System	p. 542
Inputs	p. 544
Outputs	p. 550
System Diagnosis and Service	p. 555
Toyota Computer-Controlled System	p. 555
Inputs	p. 556
Outputs	p. 558
System Diagnosis and Service	p. 566
Honda: Programmed Fuel Injection	p. 568
Inputs	p. 568
Outputs	p. 572
Honda's VTEC Systems	p. 575
System Diagnosis and Service	p. 581
Summary	p. 581
Diagnostic Exercise	p. 582
Review Questions	p. 582
Alternative Power Sources	p. 585
Objectives	p. 585
Key Terms	p. 585
Honda Insight, Civic, and Accord Hybrids	p. 587
Toyota Hybrid System	p. 590
Ford Escape Hybrid	p. 594
Fuel Cell Vehicles	p. 596
Flexible Fuel Vehicles	p. 600
System Diagnosis and Service	p. 601
Summary	p. 602
Diagnostic Exercise	p. 602
Review Questions	p. 602
Approach to Diagnostics	p. 605
Narrowing Down the Area of the Problem	p. 605
Pinpoint Testing	p. 609
Additional Information Concerning Soft Fault Diagnosis	p. 613
Summary	p. 613
Terms and Acronyms	p. 615
Automotive-Related Web Addresses	p. 623
Glossary	p. 625
Index	p. 643
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