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Home >> Nissan-Datsun >> 2004 >> Maxima SL, RE4F04B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC >> DTC P0400: EGR Function >> Diagnostic Procedure >> 1. Check Exhaust System
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

1. Check Exhaust System

  1. Start engine.
  2. Check exhaust pipes and muffler for leaks.
Fig 1: Check Exhaust Pipes And Muffler For Leaks
G00877307Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

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