P226B: The boost pressure of the turbocharger or supercharger is too high
The boost pressure of the turbocharger or supercharger is too high.
| Code | P226B |
|---|---|
| System | Engine and transmission |
| Group | P22xx, NOx sensors, oxygen sensors and emissions |
| Type | Generic: it means the same on every make |
How to read and clear P226B 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 P226B 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
- P2263 Turbocharger or supercharger boost system performance
- P2264 Water in fuel sensor circuit fault
- P2265 The fuel and water separator sensor works out of range or abnormally
- P2269 Water in fuel detected
- P226C The turbocharger boost control A responds slowly
- P226F The turbocharger boost control B responds slowly
- P2270 Oxygen sensor signal biased or stuck lean (bank 1, sensor 2)
- P2271 Oxygen sensor signal biased or stuck rich (bank 1, sensor 2)
- P2200 NOx sensor circuit fault (bank 1)
- P2201 NOx sensor circuit range or performance problem (bank 1)
- P2227 Barometric pressure sensor A range or performance problem
- P2228 Barometric pressure sensor A circuit low
What does code P226B mean?
The boost pressure of the turbocharger or supercharger is too high.
How do you clear P226B?
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, P226B 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.
