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Home >> Nissan-Datsun >> 2004 >> Maxima SL, RE4F04B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC >> DTC P0171, P0174: Fuel Injection System Function >> Diagnostic Procedure >> 1. Check Exhaust Gas Leak

1. Check Exhaust Gas Leak

  1. Start engine and run it at idle.
  2. Listen for an exhaust gas leak before three way catalyst (manifold).
Fig 1: Listen For An Exhaust Gas Leak
G00877194Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

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