EGR With EVRV Control

NOTE: For additional testing, see EGR/EVRV code tests in appropriate TESTS W/CODES article.

Fig 1: EGR & EVRV Location (Heavy-Duty Gasoline Models)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Servicing EVRV Filter (Heavy-Duty Gasoline Models)

Courtesy of GENERAL MOTORS CORP.