CONTENTS

Chapter 1 Strategy-Based Diagnostics

Introduction

Vehicle Service History

Strategy-Based Diagnostic Process

Documenting the Repair

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 2 Engine Condition Diagnostics

Introduction

Engine Mechanical Testing

Vacuum Gauge Testing to Diagnose Engine Performance Problems

A Quick Cranking Vacuum Test Using a Scanner

Where to Look for Vacuum Leaks

Overview

Cylinder Integrity Affects Engine Performance

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 3 Engine Operation Diagnostics

Introduction

Using Spark Plugs to Investigate a Cylinder

Oil-Fouled Spark Plugs and Engine Performance

Spark Plug Operation Failures

The Exhaust System Affects Engine Performance

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 4 Engine Noise, Vibration, and Fluid Intrusion

Diagnosing Engine Noises

Valve Train Noises

Motor Mount Faults

Abnormal Combustion: Pre-ignition and Detonation

Oil Consumption Testing

Diagnosing Head Gasket Failure and Coolant Loss without Visible Leaks

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 5 Compression-Ignition and Spark-Ignition Engines

Introduction

Engine Classification

Atmospheric Pressure

Energy Relationships

Four-Stroke Spark-Ignition Engines

Atkinson-Cycle and Miller-Cycle Engines

Compression Ratio

Two-Stroke Spark-Ignition Engines

Rotary Spark-Ignition Engine

Compression-Ignition Engines

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 6 Fuels

Introduction

Gasoline

Ethanol

Methanol

CNG

Propane

Synthetic Fuels

Fuel Cells

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 7 On-Board Diagnostics and Vehicle Control Modules

Powertrain Controls Introduction

OBD I

Understanding the OBD II System

Comprehensive Component Monitor

Heated Oxygen Sensor Monitor

The Malfunction Indicator Light

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 8 Diagnosing Engine Faults with Diagnostic Trouble Codes

Diagnostic Trouble Codes

One-Trip DTCs

Code Identification

Using the Datastream for Failure Analysis

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 9 Network Communications

Network Communication

Network Communication Protocols

Controller Area Network Operation

Network Faults

Network Testing Procedures

Using a Lab Scope for Network Diagnosis

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 10 Introduction to Diagnosing with a Scan Tool

Introduction

Overview

Connecting the Scanner

Mode $06 Operations and Uses

Modes of Operation for Powertrain Control Modules

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 11 Oscilloscopes

What Is an Oscilloscope?

Comparing a Scope to a Digital Multimeter

Introduction to Scopes

Test Leads

Scope Setup

Connecting the Scope to an Electrical Circuit

Assigning a Time-Per-Division Value

Trigger

Using Coupling on an Oscilloscope

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 12 Diagnosing with an Oscilloscope

Analysis of Motor Current Draw

Using a Digital Storage Oscilloscope for Diagnosis

Waveforms from the Ignition Coil and the Fuel Injector Operation

Connecting Transducers

Connecting an Amp Clamp

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 13 Ignition System Fundamentals

Ignition System Fundamentals

The Law of Induction

Ignition System Design

Types of Ignition Systems

Overview

Spark Plugs

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 14 Types of Ignition Systems

Exploring Automotive Ignition Systems

Electronic Ignition Systems and Components

Hall-Effect Sensors and Their Operation

Distributorless Ignition Systems

Crankshaft Position and Camshaft Position Sensor Operation

Compression Sense Ignition System Overview

The Principles behind Coil-on-Plug and Direct-Ignition Systems

Distributorless Ignition System Timing

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 15 Ignition System Service

Ignition System Service

Preparation for Servicing the Spark Plugs

Distributor Cap and Rotor Service

Ignition Coil Failures and Diagnosis

Basic Coil Testing

Ignition Coil Service

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 16 Using Scopes to Test the Ignition System

Primary Waveform Analysis

Basic Scope Setup for Current Ramping Ignition Coils

Ignition Waveform Analysis

Ignition Scope Secondary Terminology

Secondary Ignition Diagnosis

Secondary Testing for Waste Spark/Distributorless Ignition Systems

Universal Tests for Oscilloscope Ignition Systems

Waveform Failure Examples

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 17 The Fuel Supply Components of  the Electronic Fuel-Injection System

The Fuel Supply Components of the Electronic Fuel-Injection System

Fuel Systems and Fuel Rail Construction

Principles of Electronic Fuel Injection

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 18 Fuel-Injection Sensors—Inputs

Electronic Fuel-Injection Sensors

Pressure Sensors

Switches

Speed Sensors

Oxygen Sensors

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 19 Electronic Fuel-Injection Output Devices

Electronic Fuel-Injection Output Devices

Powertrain Control Module

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 20 Vehicle Emissions Systems

What Is an Evaporative Emissions Control System?

Crankcase Ventilation

Exhaust Gas Recirculation Systems

Air-Injection Reaction System

Catalytic Converter

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 21 Gasoline Direct Injection

Introduction

Piston Designs

Electronic Control Modes of Operation

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 22 Variable Valve Timing

Variable Valve Timing

Variable Valve Timing Systems from Original Equipment Manufacturers

Oil Pressure Faults

Circuit/System Testing

Designs of Variable Valve Timing Actuators

Magnetically Controlled Phasers

Variable Displacement System/Displacement on Demand

Cam Phaser Replacement

Clearing and Relearning Procedures for Scan Tools

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Chapter 23 Supercharging and Turbocharging

Forced Induction

Supercharger Overview

Turbocharger Overview

Boost Control Operation

Potential Turbocharger Issues

VGT/VNT Turbocharger Diagnosis

Ready for Review

Key Terms

Review Questions

ASE Technician A/Technician B–Style Questions

Appendix A 2017 ASE Education Foundation  Automobile Accreditation Task List Correlation  Guide

Appendix B Generic OBD II Codes Present on All OBD II Vehicles

Glossary

Index