Great books! A wealth of insightful information inside. I can almost guarantee you will learn something reading one of their fine books.

-Review left from Shawn at Mavis Auto

Great class, covered all the major points, and thoroughly explained how the system works. Lots of good tips on how to efficiently diag and be more profitable in the shop.

5 Star Rating left by Justin Bond of Prestige Diesel & Auto Repair 

Everyone really enjoyed the class and thought it was very well done and everyone loved the trainer. He did our last in-person class and he is very sharp and communicates very well. Great material and the feedback I've gotten and the bits that I dropped in and watched was impressive. Y'all did a great job.

5 Star Rating by Joseph S. from EuroFix

Well planned and executed. Would also be great to see actual slides or pictures of amp clamps testing the circuit that's being diagnosed. Kris is very knowledgeable and helps me to find shorter ways to get the best result.

5 Star review left by Michael Nicholson of Kal Tire 


Excellent class! You guys always put on very informative classes with real-world troubleshooting tips that save us a lot of time. Thank you!

5 Star Rating and Review left by Juan Garcia from City of Tracy Central Garage 

Astonishing Training well prepared! First time at ATG Training, and must say thank you, Kris Lewis and Rick Kelley. Impeccable tips and tricks for the automotive industry. Definitely enjoyed and learn a lot from our first session at GDI. I look forward to more training, would love to definitely go in person. One Day. Thanks again guys!

Review left by Henry Garcia from Firestone Auto Care Shop 

As always, lots of great information! 

Review by Yvette M. Rodriguez from Dona Ana County Fleet Shop

Bryan is an awesome teacher. I’ve learned so much in the three classes I’ve been in so far. 

5 star rating left by Troy Walters from West Miramar Automotive and Transmission 

Great classes and very informational.

5 star rating by David Young from Norwood Auto Service

Very informative as usual.

Review  and 5-star rating left by Frank Maynard 


Sign up to receive news of new titles and be notified when new training seminars will be conducted in your area.
Subscribe Now →

ATG logo color negative RGB with descriptor

ATG logo color negative RGB with descriptor


Upcoming Classes

Check out what classes we already have on the schedule for the upcoming weeks.
Class Schedule →