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Home › Infiniti › 2004 › M45 › Repair and Diagnosis (Single Page) › Engine Performance › Engine Control System › DTC P0172, P0175: Fuel Injection System Function › Diagnostic Procedure › 2. Check For Intake Air Leak

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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