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Home >> Infiniti >> 2005 >> FX45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System - VK45DE >> DTC P0101: MAF Sensor >> Overall Function Check >> Procedure For Malfunction B >> With GST
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With GST

  1. Start engine and warm it up to normal operating temperature.
  2. Select "Service $01" with GST.
  3. Check the mass air flow sensor signal with "Service $01".
  4. Check for linear mass air flow sensor signal value rise in response to increases to about 4,000 RPM in engine speed.
  5. If NG, go to "DIAGNOSTIC PROCEDURE  ".
    Fig 1: Checking Mass Air Flow Sensor Signal
    G02361465Courtesy of NISSAN MOTOR CO., U.S.A.
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