Light-Duty NGV Maintenance and Diagnostics Training

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This course prepares technicians to understand the operation, maintenance, diagnosis and repair of light- and medium-duty natural gas vehicles, including passenger cars, pick-up trucks, delivery trucks and box vans. Emphasis is placed on the safety knowledge and repair practices required for NGV technicians. The course covers multiple manufacturers’ systems, focusing on both common components and operational designs specific to a given manufacturer.

The course includes operational theory with hands-on exercises, use of DMMs, scan tools and other diagnostic equipment. This course will prepare technicians for the ASE F1 exam.

Who Should Attend:

  • Technicians with basic skills in non-NGV automotive repair who will need to maintain, diagnose and repair natural gas vehicles.
  • Technicians familiar with the basic driveability diagnostics for gasoline powered vehicles.


Instructional staff members of colleges, universities, or similar private training organizations are not candidates to attend our individual classes but have numerous options for bringing NGVi's training classes to their campuses or facilities. For more information, contact us at 800-510-6484.


Course Objectives:

  • Identify specific concerns, safety and emergency procedures related to pressurized fuel systems.
  • Identify the characteristics of CNG vs. conventional gasoline liquid fuel.
  • Diagram the fuel flow through, and operation of, all NGV components; perform related maintenance and repair procedures.
  • Utilize proper techniques to construct high-pressure lines and fittings.
  • Diagnose electrical related issues, sensors and solenoids using wiring diagrams, service information, DMMs, and scan tools; identify and interpret diagnostic data.
  • Diagnose hard starting and/or poor driveability caused by the NGV fuel system.
  • Increase the technician’s knowledge and preparation for successful completion of the ASE F1 Alternative Fuels certification exam.

Course Outline:

Module 1:

Natural Gas Fuel Properties

Module 2:

Safety, Work Practices and Facilities

Module 3:

High-Pressure Systems

Module 4:

NGV Engine Operational Theory and Maintenance Procedures

Module 5:

Engine Management: Ignition, Emission, OBD II

Section II:

CNG Systems – BAF, Baytech, Honda, Landi Renzo, and Westport LD

Click here to learn more about in-house opportunities.


Upcoming Training

Level 1: NGV Essentials
and Safety Practices

March 6, 2018
Nashville, TN

Level 2: CNG Fuel System
Inspector Training

March 7-8, 2018
Nashville, TN

Level 1: NGV Essentials
and Safety Practices

March 26, 2018
Bakersfield, CA

Level 2: CNG Fuel System
Inspector Training

March 27-28, 2018
Bakersfield, CA

Level 3: Heavy-Duty NGV
Maintenance and Diagnostics Training

April 9-10, 2018
Glassboro, NJ

Level 2: CNG Fuel System
Inspector Training

April 11-12, 2018
Glassboro, NJ

Level 1: NGV Essentials
and Safety Practices

May 8, 2018
Olathe, KS

Level 2: CNG Fuel System
Inspector Training

May 9-10, 2018
Olathe, KS

Register Now »

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About NGVi

Natural Gas Vehicle Institute is North America’s leading provider of training and consulting on natural gas as a transportation fuel.

Our services address the full range of natural gas vehicle and fueling issues, including:

Technical consulting services – Sizing and designing compressed natural gas fueling stations, vehicle assessments and technical assistance for fleets, CNG fueling station troubleshooting, natural gas vehicle maintenance facilities upgrades, liquefied natural gas fleet and fueling management.

Technical training – NGV Essentials and Safety Practices, CNG Fuel System Inspector Training, Heavy-Duty NGV Maintenance and Diagnostics Training, Light-Duty NGV Maintenance and Diagnostics Training, CNG Fuel System Design and Installation Training, Essentials of CNG Station Operation and Maintenance Training, Essentials of CNG Station Planning, Design and Construction Training and CNG/LNG Codes and Standards Training for Fire Marshals and Code Officials.


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