Check Engine Light Due to Failed Rear Oxygen Sensor on INFINITI QX4
Problem overview
The rear oxygen sensor may fail resulting in illumination of the Check Engine Light. Our technicians recommend to ensure the latest software is installed in the powertrain control module (PCM) along with replacing the failed O2 sensor.
3 people reported this problem
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INFINITI QX4 vehicles with this problem
1 model year affected
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