P2293: Fuel pressure regulator 2 performance
The second fuel pressure regulator cannot reach the pressure the ECU asks for. Often the regulator itself, low fuel or a dirty fuel filter.
| Code | P2293 |
|---|---|
| System | Engine and transmission |
| Group | P22xx, NOx sensors, oxygen sensors and emissions |
| Type | Generic: it means the same on every make |
| Can you keep driving? | With care |
What P2293 means
Some injection systems, especially common rail diesels, have two parts that control fuel pressure: one on the pump and one on the injector rail. Which one counts as regulator 2 is up to each manufacturer. This code means that regulator cannot hold the pressure the ECU expects.
Most common causes
- Blocked fuel filter or air in the filter
- Very low fuel level or air getting into the fuel lines
- Loose or corroded regulator connector
- Regulator 2 faulty or stuck with dirt
- Rail pressure sensor reading wrongly
- Leaking injector returns or a worn pump
Symptoms
- Engine warning light on
- Loss of power or limp mode
- Hard starting
- Engine may stall
Can you drive with P2293?
With care You can drive with care, but the engine may lose power or stall without warning. Get it to a workshop soon and avoid long journeys.
Open the bonnetthe in-depth explanation
How to check it
With your reader, compare desired and actual rail pressure live at idle and when accelerating: if the actual figure does not follow the desired one, note it for the workshop. If the filter was changed recently, check no air was left in the system.
How to read and clear P2293 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 P2293 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
- 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
- P2294 The fuel pressure regulator 2 control has a broken or disconnected wire
- P2295 The fuel pressure regulator 2 control gives a lower signal than normal
- P2296 The fuel pressure regulator 2 control gives a higher signal than normal
- P2297 The signal from heated lambda sensor 1 on bank 1 goes out of range during
- 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 P2293 mean?
Some injection systems, especially common rail diesels, have two parts that control fuel pressure: one on the pump and one on the injector rail. Which one counts as regulator 2 is up to each manufacturer. This code means that regulator cannot hold the pressure the ECU expects.
Can you drive with P2293?
You can drive with care, but the engine may lose power or stall without warning. Get it to a workshop soon and avoid long journeys.
How do you clear P2293?
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, P2293 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.
