Car Problem Reports

Infiniti QX4 Loss of Power and/or Check Engine Light With Code P0171 and/or P0174

Infiniti QX4 Problem
3 Reports
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Model Years Affected: 1999, 2000, 2001


The mass airflow sensor may fail resulting in a loss of power and/or Check Engine Light illumination with code P0171 and/or P0174 stored. Our technicians recommend replacing the failed airflow sensor to correct this concern.

  • My qx4 is not give me a power its take time to give a power if i press the gas i loss the power if i alwys stop irs take time to give a power again what is the problem of my qx4 pls help me

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