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While this book is written to help technicians prepairing to take the California Smog Check technicians exam, it's also ideal for anyone who wants to learn about vehicle emissions and diagnosis.
The author, Steven McAfee, is a respected automotive instructor at Skyline College in San Bruno California. He has over 35 years of experience in the automotive field, writes questions for the Smog Check Technician's License exam, and is a California certified clean air car instructor.
Smog Refresher Course is broken down into clearly defined sections including:
The book is 8.5" x 11" and contains approx 123-pages.
Five Gas Exhaust Analysis Theory
-Introduction
-Good Combustion
-Bad Combustion
-Smog Machine Measurements
-HC, Hydrocarbons
-CO, Carbon Monoxide
-CO2, Carbon Dioxide
-O2, Oxygen
-NOx, Oxides of Nitrogen
-Review
-Five Gas Chart
Exhaust Gas Analysis Examples
-Four Gas Readings
-Five Gas Readings
Five Gas Test
-Questions
-Answers and Explanations
Scan Tool Diagnosis – Computer Inputs and Outputs
-Computer Rule #1
-Computer Rule #2
-Computer Rule #3
-Basic Needs of an Engine
-Input Sensors
-RPM
-Load (MAP, MAF,VAF, KV)
-Throttle Position or Throttle Angle (TP, TPS or TA)
-Coolant or Air Temperature (ECT or IAT)
-Oxygen Sensor (O2 or O2S but HO2 or HO2S if it has an internal heater.)
-Fuel Trim
-Knock Sensor (KS)
-Outputs
-Final Computer Theory
Scan Tool Diagnosis Computer Examples
-Introduction
-Example #1
-Example #2
-Example #3
-Example #4
-Example #5
Scan Tool Diagnosis Test
-Questions
-Answers and Explanations
Emission Control Devices
-PCV (Positive Crankcase Ventilation)
-Fuel Evaporative Systems
-Thermostatic Air Cleaners (TAC) and other Early Evaporation (EFE) Devices
-Air Injection (AIR)
-EGR, Exhaust Gas Recirculation
-Catalytic Converters (CAT)
-Basic Theory
Emission Control Device Examples
-PCV Valve Problems
-Fuel Evaporative Problems
-Air Injection Problems
-EGR Problems
-CAT Problems
Emission Control Device Test
-Questions
-Answers and Explanations
Feedback Carburetors
-What Is It?
-Basic Carburetor Theory Review
-Basic Carburetor Diagnosis
-Feedback
-Feedback Carburetor Examples
-What Readings Mean
Feedback Carburetor Examples
-Example #1
-Example #2
-Example #3
-Example #4
Feedback Carburetor Test
-Questions
-Answers
Rules and Regulations
-Enhanced Areas
-Referee Centers
-Exempt Vehicles
-Smog Inspections and Repairs
-More about the Smog Inspection
-Underhood Label
-Motor Homes
-Other Vehicles
-Telling the Customer
-Gross Polluters
-Smog Machines
-Repair Cost Waivers, Extensions and Limits
-Types of Smog Stations
-More about Smog Stations
-Basic or Advanced Emissions Specialist License Requirements
-Basic Smog Inspection Procedures
-Examples of Visual Inspection
-Pre-Inspection Repairs or Unintentional Tampers
-More about the Visual Inspection
-Emissions Test
-Functional Tests
Rules and Regulations Test
-Questions
-Answers
Dynamometer Testing Theory
-Dyno Testing
-Safety Considerations
-Functional Test
On Board Diagnostics II Theory
(from the CA Bureau of Automotive Repair)
-OBDII has Three Main Objectives
-History
-General Requirements
-Components and Systems
-MIL Display Options
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