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2000 Infiniti QX4 Problems

 

Check Engine Light With Code P0138, P0140, P0158, and/or P0160

Verified for the Infiniti QX4

The Check Engine Light may illuminate with code P0138, P0140, P0158, and/or P0160 stored. Our technicians recommend replacing the rear oxygen sensor, and reprogramming the vehicle's powertrain control module (PCM) with upgraded software to correct this concern.

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

Verified for the Infiniti QX4

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.

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