Aftertreatment Emission System Training


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Live virtual classroom Aftertreatment Emission System Diagnostics training session with a VieTech training instructor.

Total session length: 4-hours



This training module will focus on EPA Heavy-Duty Diesel Engine emissions regulations and corresponding technology utilized by engine manufacturers to meet the requirements. The content delivered will directly relate to the developments, product changes, troubleshooting and service procedures surrounding current diesel engine aftertreatment emission control systems used across all major manufacturers.

Learning Objectives:

  • Understanding of Diesel Engine Emission Control History & Technology Advances

    • Overview of EPA 2004 – 2016 tailpipe emission regulations

    • Overview of GHG CO2 emission regulations

  • Diesel exhaust gas recirculation (EGR) theory and operation

  • In-depth understanding of exhaust Aftertreatment components, theory and operation

    • Diesel Oxidation Catalyst (DOC)

    • Diesel Particulate Filter (DPF)

    • Selective Catalytic Reduction (SCR) Catalyst

    • Diesel Exhaust Fluid (DEF) System

  • HD OBD & Fault Troubleshooting Logic

  • Single Module Aftertreatment Systems

  • UL2 DEF Dosing System

  • Understanding of maintenance, troubleshooting techniques and diagnostic tests

  • Diagnosis of engine faults and symptoms using current troubleshooting software


  • 4-hours


  • Aftertreatment & Emission Systems Course Workbook

Additional information

Weight 3 lbs
Dimensions 17 × 13 × 3 in

Live Virtual, Pre-Recorded