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Home › Nissan-Datsun › 2004 › Maxima SE, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTC › DTC P0171, P0174: Fuel Injection System Function › Diagnostic Procedure › 6. 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.
    1. 2.0 - 6.0 g.m/sec: at idling 
    2. 7.0 - 20.0 g.m/sec: at 2,500 RPM 
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