P2ADF: There is an air leak in the intake of bank 2
There is an air leak in the intake of bank 2, the engine is getting air that is not measured. It is usually a loose or split hose, an intake manifold gasket or the crankcase breather pipe.
| Code | P2ADF |
|---|---|
| System | Engine and transmission |
| Group | P2Axx, Engine and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P2ADF 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 P2ADF 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
- P2ADB The AdBlue tank temperature sensor B gives a lower signal than normal
- P2ADC The AdBlue tank temperature sensor B gives a higher signal than normal
- P2ADD The AdBlue tank temperature sensor B fails now and then
- P2ADE The AdBlue tank temperature sensor B has an electrical fault
- P2AE0 The intake air lambda sensor pumping current trim (bank 1) has a broken or
- P2AE1 The intake air lambda sensor pumping current trim (bank 1) gives a lower signal
- P2AE2 The intake air lambda sensor pumping current trim (bank 1) gives a higher
- P2AE3 The intake air lambda sensor pumping current (bank 1) has a broken or
- P2A00 O2 sensor circuit range/performance (bank 1, sensor 1)
What does code P2ADF mean?
There is an air leak in the intake of bank 2, the engine is getting air that is not measured. It is usually a loose or split hose, an intake manifold gasket or the crankcase breather pipe.
How do you clear P2ADF?
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, P2ADF 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.
