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Home › Nissan-Datsun › 2004 › Maxima SE, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTC › 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 

  1. OK: GO TO 2.
  2. NG: Repair or replace.
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