Emissions

So much effort goes into controlling the exhaust emissions of combustion engine vehicles and this section looks at some of the underlying principles of emission control and the 4 gas analyser.

The 4-gas analyser can provide a window into the combustion chamber and understanding how to interpret its readings is a very powerful skill. This comprehensive and in-depth course is designed to explain how to use it and interpret its results, along with some great diagnostic techniques.

  • Understanding Lambda
  • Zirconium Dioxide Oxygen Sensor
  • The Principles of Catalytic Converters
  • Understanding 4 Gas Analysis
    • 4 Gas Analysis – Introduction
    • 4 Gas Analysis – Lambda
    • 4 Gas Analysis – Air and Fuel
    • 4 Gas Analysis – Perfect Combustion
    • 4 Gas Analysis – True Combustion
    • 4 Gas Analysis – The Role of the Catalytic Converter
    • 4 Gas Analysis – Prechecks
    • 4 Gas Analysis – True Catalytic Converter Operation
    • 4 Gas Analysis – Deviations from Lambda 1
    • 4 Gas Analysis – Fuelling Maps
    • 4 Gas Analysis – Fuel Trim – The Theory
    • 4 Gas Analysis – Fuel Trim – The Realities
    • 4 Gas Analysis – Fuel Trim – Indicators of Common Faults
    • 4 Gas Analysis – Diagnosing using a Gas Analyser
    • 4 Gas Analysis – Diagnostic Scenarios

01 Fundamentals

Browse

02 Engine Management

Browse

03 Vehicle Electrics

Browse

04 Hybrid and Electric Vehicles

Browse

05 HVAC

Browse

06 Chassis

Browse