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Home >> Mazda >> 2000 >> 626 ES V6-2.5L DOHC >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> P Code Charts >> P0420

P0420

Detection Condition:



Diagnostic Procedure (Steps 1 - 5):



Diagnostic Procedure (Steps 6 - 9):



Diagnostic Procedure (Steps 10 - 11):



Diagnostic Procedure (Steps 12 - 15):



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