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L300
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Engine Controls - Self-Diagnostics
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DTC P0402: EGR Flow Excessive
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Diagnostic Procedure
Diagnostic Procedure
Fig 1: DTC P0402: EGR Flow Excessive (Steps 1-8)
Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0402: EGR Flow Excessive (Steps 9 & 10)
Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0402: EGR Flow Excessive (Steps 11-16)
Courtesy of GENERAL MOTORS CORP.
Fig 4: DTC P0402: EGR Flow Excessive (Steps 17-20)
Courtesy of GENERAL MOTORS CORP.