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Home >> Infiniti >> 2004 >> G35 Base, 2D Coupe, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> 2004 - Engine Control System - Coupe >> DTC P0420, P0430: Three Way Catalyst Function >> Diagnostic Procedure >> 1. Check Exhaust System

1. Check Exhaust System

Visually check exhaust tubes and muffler for dent.

OK or NG

OK: GO TO 2.

NG: Repair or replace.

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