VIDEO: Diagnosing DTC P0401 EGR Insufficient Flow

Eric Garbe is a graduate of Columbus State Community College with a degree in Automotive Maintenance Technology. He has extensive independent and dealership field experience as a former technician and shop owner. He is also an ASE certified technician, a former Adjunct Automotive Professor at his alma mater, and has been professionally writing automotive technical articles and documents for many years. In his free time he enjoys restoring old cars and creating custom interiors and upholstery.