P2293 Fuel pressure regulator 2 (B) performance
What P2293 means
Many common-rail diesels and some petrol direct-injection engines control rail pressure with two regulators, often one on the pump and one on the rail. P2293 means regulator B is not achieving the pressure the engine computer commands. Power may be reduced, and the engine may hesitate or stall.
P2293 is a generic SAE J2012 code: it means the same on every make. The exact cause still depends on the car, so read the freeze-frame data before replacing parts.
At a glance
- Severity
- Medium
- Typical repair cost
- 200–1500 €
- Workshop time
- 1–5 h
- Repair difficulty
- Hard
- DIY possible
- No
- Check engine light
- Yes
- Affects emissions test
- Yes
- Limp mode possible
- Yes
Parts and labour at an independent workshop in Europe. Main dealers charge more; the cause decides the bill, not the code.
Symptoms
- Check engine light on
- Reduced power or limp mode
- Hesitation or surging
- Hard starting or stalling
Common causes
- Faulty fuel pressure regulator B
- Worn high-pressure fuel pump
- Faulty rail pressure sensor
- Clogged fuel filter or low supply pressure
- Wiring fault to the regulator
Can I keep driving with P2293?
You can drive gently, but have it checked within one or two weeks. If power drops or the engine stalls, get it to a workshop sooner.
What to check first
- Check supply pressure and the fuel filter first
- Compare commanded and actual rail pressure in live data
- Check the regulator wiring and resistance
- Test the high-pressure pump and rail pressure sensor before replacing the regulator
Related codes
- P2291 Injector control pressure too low during cranking
- P22FB NOx sensor performance, sensing element (bank 1 sensor 1)
- P218F Reductant (AdBlue) no flow detected
- P2400 EVAP leak detection pump control circuit/open
- P2418 EVAP system switching valve control circuit/open
- P2101 Throttle actuator control motor circuit range/performance
- P20EE SCR NOx catalyst efficiency below threshold (bank 1)
- P2459 Diesel particulate filter regeneration frequency (bank 1)
Data: TORKO fault-code catalogue, built on OBDex (CC0-1.0) and reviewed against workshop practice. Informational only — it does not replace a diagnosis by a mechanic.
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