About the Authors
Preface
Knowing and becoming a Smog Check Inspector
Qualifications and Duties of a Smog Check Inspector
Inspector Duties
Qualifications
Level 1 Training - Engine and Emission Controls Fundamentals
Experienced candidates may skip Level 1 training if they meet any of the following requirements
Level 2 Training - Smog Check Procedures
License Renewal
It’s Your Duty!
History
I can see the air
I can see clearly now…Well, maybe NOT
Do I Really Have to Explain Safety?
Vehicle safe to inspect. Am I safe?
Personally, I’d like you to stay away from your vehicle
The older I get, the more it hurts to fall
Heed These Stories
Configuration
Inline
V Style
Rotary Engine
Horizontal Engine
Valvetrain
Mechanical Timing
Operation
Suck, Squeeze, Bang, Blow.
Foundation
Rotary Engines…Just had to be Different
Ignition System
Conventional Ignition Systems
Electronic Ignition System
Distributorless Ignition Systems
Wasted Spark
Coil Over Plug
Adjustable Timing
Carburetors, Overpriced Paperweight
Throttle Body Injection, Throttle my What
Manifold absolute Pressure Sensor (MAP)
Throttle Position Sensor (TPS)
Oxygen Sensor (O₂)
Engine Coolant Temperature sensor (ECT)
Fuel Injection, nothing more to say
Diesel
All Natural
Naturally Aspirated
Forced Air Induction
Single or Dual action
Black, Blue, White, or Grey…neither one is Good
Too Hot to Be Cool
A Cooling System in a Nutshell
Coolant
The Thermostat controls Emissions, What???
If only I Knew how to Cool off
Fundamentals of electricity
You Can’t Electromotive Force me
That was Intensity
I am the Resistance
Putting it all Together
Oh…Oh…Ohms Law.
Components
Power Source
Wires
Loads
Ground
Circuit Protection
Control Device
Series circuits
Parallel circuit laws
Series-parallel circuits
God’s Gift to the Automotive World
The Computer
Readiness Monitors
Readiness Monitor Types
Continuous
Non-Continuous Monitors
Make Sure to Remove the Tape
ALDL or DLC, What’s with all the Acronyms
OBDII Functional Test
When it Looks Like a Duck
VECI Labels (under-hood)
When it’s not a Duck (BAR Label)
Grey Market
You got Refer’ed
Referee Label
CARB Label
Crankcase Ventilation, because breathing is good
Fuel Evaporative can be Stinky
Testing
Exhaust Gas Recirculation (EGR)
Valves
Diesel EGR
Testing
Thermostatic Air Cleaner (TAC)
Operation
Types
Air Injection (AIR, PAIR)
Types
Ignition Spark Controls (SPK)
Testing
Catalytic Converter (OC, TWC, WU-TWC)
Operation
Types
Diesel Catalyst Converters
Oxygen Sensor (O₂, HO₂, A/F)
Air Fuel Ration Sensor
Gasoline and Diesel
References