Mandy Concepcion has worked in the automotive field for over 21 years. He holds a Degree in Applied Electronics Engineering as well as an ASE Master & L1 certification. For the past 16 years he has been exclusively involved in the diagnosis of all the different electronic systems found in today's vehicles. It is here where he draws extensive practical knowledge from his experience and hopes to convey it in his books. Mandy also designs and builds his own diagnostic equipment, DVD-Videos and repair software.

Website: http://www.autodiagnosticsandpublishing.com
Twitter: ADPEducation

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• Nissan Neo VVL Valve Lift: http://t.co/ybc4qVmQIy via @YouTube

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