P228E: Fuel pressure regulator 1 has exceeded its learning limit and its signal is low
Fuel pressure regulator 1 has exceeded its learning limit and its signal is low. It needs learning with diagnostic equipment.
| Code | P228E |
|---|---|
| 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 P228E 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 P228E 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
- P2289 Injector control pressure is too high while the engine is off
- P228A Fuel pressure regulator 1 has activated engine limp mode
- P228B Fuel pressure regulator 2 has activated engine limp mode
- P228C The fuel pressure stays below what the regulator can correct
- P228F Fuel pressure regulator 1 has exceeded its learning limit and its signal is high
- P2290 The injector control pressure is below normal
- P2291 The injection pressure is too low while cranking
- P2292 The injector control pressure fails now and then
- 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 P228E mean?
Fuel pressure regulator 1 has exceeded its learning limit and its signal is low. It needs learning with diagnostic equipment.
How do you clear P228E?
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, P228E 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.
