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Home >> Nissan-Datsun >> 2004 >> Maxima SL, RE4F04B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC >> DTC P0172, P0175: Fuel Injection System Function >> Diagnostic Procedure >> 2. Check For Intake Air Leak
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2. Check For Intake Air Leak

Listen for an intake air leak after the mass air flow sensor.

OK or NG 

  1. OK: GO TO 3.
  2. NG: Repair or replace.
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