P013F: Heated lambda sensor 2 on bank 1 is late switching from lean to rich
Heated lambda sensor 2 on bank 1 is late switching from lean to rich. Check the sensor, its connector and wiring.
| Code | P013F |
|---|---|
| System | Engine and transmission |
| Group | P01xx, Air and fuel metering |
| Type | Generic: it means the same on every make |
How to read and clear P013F with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P013F with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P013B Heated lambda sensor 2 on bank 1 responds slowly when switching from lean to
- P013C Heated lambda sensor 2 on bank 2 responds slowly when switching from rich to
- P013D Heated lambda sensor 2 on bank 2 responds slowly when switching from lean to
- P013E Heated lambda sensor 2 on bank 1 responds slowly when the mixture changes from
- P0140 Oxygen sensor (bank 1, sensor 2): no activity
- P0141 Oxygen sensor heater (bank 1, sensor 2): circuit fault
- P0142 The lambda sensor (bank 1, sensor 3) has an electrical fault
- P0143 The lambda sensor (bank 1, sensor 3) gives a lower signal than normal
- P0100 Mass or volume air flow sensor circuit fault
- P0101 Air flow sensor range or performance problem
- P0102 Air flow sensor circuit low input
- P0103 Air flow sensor circuit high input
What does code P013F mean?
Heated lambda sensor 2 on bank 1 is late switching from lean to rich. Check the sensor, its connector and wiring.
How do you clear P013F?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P013F comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
