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Home › Infiniti › 2004 › M45 › Repair and Diagnosis › Engine Performance › Engine Control System › DTC P0171, P0174: Fuel Injection System Function › Diagnostic Procedure › 7. Check Mass Air Flow Sensor › With Consult-II

With Consult-II

  1. Install all removed parts.
  2. Check "MASS AIR FLOW" in "DATA MONITOR" mode with CONSULT-II.

    3.8 - 5.2 g.m/sec: at idling 

    16.0 - 21.5 g.m/sec: at 2,500 RPM 

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