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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P0420, P0430: Three Way Catalyst Function >> Diagnostic Procedure >> 8. Check Intermittent Incident
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8. Check Intermittent Incident

Refer to TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT  .

Trouble is fixed :INSPECTION END 

Trouble is not fixed :Replace three way catalyst assembly.

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