Possible Cause
WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
P0139
- Harness or connectors (The sensor circuit is open or shorted)
- Heated oxygen sensor 2
- Fuel system
- EVAP system
- Intake air system
P0159
- Harness or connectors (The sensor circuit is open or shorted)
- Heated oxygen sensor 2
- Fuel system
- EVAP system
- Intake air system