Eric Walker and Rick Kelly make a great team while presenting the ATG General Motors Drivability & Code Diagnostics online course. Each night is only 1.5 hours per night, two nights in a row. This allows you to work hard all day and still get enough sleep to be productive at work the next day. A must-have is the well-designed and laid-out manual that is approximately 3/4" thick and packed with valuable diagnostic information and waveforms. ATG is AWESOME.

Review left by Eric A. from College of Western Idaho 


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