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Turbo Diagnostics 1 by John Thornton

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Turbos deliver increased power, better fuel economy, reduced engine size/weight, and reduced emissions. This class focuses turbocharger components & operation with a heavy emphasis on using scan data to diagnose turbo driveability issues.

Topics Covered
• What Is It That Turbochargers Actually Do?
• Turbocharger Components & Operation
• Pressure Actuated Wastegate Valve Control
• Vacuum Actuated Wastegate Valve Control
• Boost Leak Testing
• Chevy Cruze 1.4L Turbo Operation
• 2011 VW CC 2.0L CCTA Turbo Operation 

Case Studies
• 2015 Ford Expedition Twin Turbo 3.5L Boost Control Issue
• 2013 BMW X5 N55 3.0L P0299
• 2007 VW Passat 2.0L P0299 

Turbos are labor intensive & costly to repair. John's case studies will help you deliver a game plan for successful turbo diagnostics.

Turbos deliver increased power, better fuel economy, reduced engine size/weight, and reduced emissions. This is part 1 of a two-part class, John will cover how they function, how they are controlled, and diagnosing turbo driveability issues with scan data and electrical tests. 

Part 1 will specifically go over overboost & underboost, issues, why actual boost is sometimes different, bypass control, and more.

Part 2 will be available in December 2021.

Instructor John Thornton

Video Length 4 hours approx

PDF Class Manual included, to be downloaded after logging in to watch the video

Streaming Delivery
- On the day of each live broadcast an email will be sent to you from ZOOM an hour before the event begins.
- One week after the live broadcast, the recordings from both nights will be combined into one video and posted into your account at ASI. Login credentials will be emailed to you from AESwave.

About John Thornton
John discusses how to ground your scope during a seminarFor the past 20 years, John has provided the automotive aftermarket with hands-on and classroom training on a wide variety of topics, including: engine and transmission driveability, module programming, bus communication issues, and electrical diagnosis, lab scopes and scan tools. In the process he has become the foremost trainer in the nation for professional technicians, school instructors, and technical trainers.

The information and techniques John presents have been gleaned over 30 years in the Chicago area as a diagnostic technician, working in the bay and now as mobile tech. He is a mechanical engineer and has an extensive electronics background.

"If you go to just one class, ya'gotta go to John's class, no matter what the topic is."  Bob in IL.

"John is the trainer that other trainers are measured by." Harvey in BC.


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