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Home >> Nissan-Datsun >> 2003 >> Frontier Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0101: Mass Airflow Sensor Circuit Range/Performance Problem >> Overall Function Check Test "B" (Using GST)
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Overall Function Check Test "B" (Using GST)

Start engine and warm to operating temperature. Select MODE 1 with scan tool. Check mass air flow sensor signal in MODE 1. Increase engine speed to 4000 RPM. Monitor voltage on scan tool. If voltage increases with RPM, system is okay. If voltage does not increase with RPM, go to DIAGNOSTIC PROCEDURE  .

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