P228B: Fuel pressure regulator 2 has activated engine limp mode
Fuel pressure regulator 2 has activated engine limp mode.
| Code | P228B |
|---|---|
| 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 P228B 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 P228B 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
- P2287 The injector control pressure sensor fails now and then
- P2288 The injector control pressure is above normal
- P2289 Injector control pressure is too high while the engine is off
- P228A Fuel pressure regulator 1 has activated engine limp mode
- P228C The fuel pressure stays below what the regulator can correct
- P228E Fuel pressure regulator 1 has exceeded its learning limit and its signal is low
- P228F Fuel pressure regulator 1 has exceeded its learning limit and its signal is high
- P2290 The injector control pressure is below normal
- 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 P228B mean?
Fuel pressure regulator 2 has activated engine limp mode.
How do you clear P228B?
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, P228B 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.
