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Home >> Mazda >> 2004 >> 6 s, 4D Hatchback, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System AJ) >> DTC P0401: EGR Flow Insufficient Detected >> Diagnostic Procedure
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Diagnostic Procedure

Fig 1: DTC P0401: Diagnostic Procedure Chart (Steps 1-8)
G01011047Courtesy of MAZDA MOTORS CORP.
Fig 2: DTC P0401: Diagnostic Procedure Chart (Steps 9-12)
G01011048Courtesy of MAZDA MOTORS CORP.