Check Engine Light With Code P0138, P0140, P0158, and/or P0160on 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.

RepairPal Verified
Average mileage : 123,050 (98,100–148,000)
3 Years Affected: 1999, 2000, 2001
5 people reported this problem
1 person shared problem details
1999 Infiniti QX4148,000
Check engine light stays on. Had it checked at local repair shop and it's the o2 sensor. Owner/Mechanic said it's not a big deal from the point of view of driving the car but will have to deal with it in order to pass next inspection. He said it's expensive, around $600.
Related Items:
I replaced a battery six weeks ago. Sometimes car is dead after sitting all night, and gearshif...
We recently purchased a used Infinity QX4 (2002). The previous owner had thrown away the keyles...
Carbon deposits on the throttle body may cause any of the following issues: Idle speed fluctuat...
My Infinite is showing these codes: P1110, P1135, P0420 & P0430. The Master Airflow sensor was...

Related Content