P2293
Fuel Pressure Regulator B Performance
Fuel & air metering
Generic OBD-II
Medium
What it means
P2293 means fuel pressure regulator B is not holding rail pressure within the expected range — the actual fuel pressure differs from what the ECM commands. That can cause hard starting, hesitation, reduced power, and in some cases stalling, so it is worth diagnosing promptly.
Medium
Can I keep driving? Drivable but expect hard starting, hesitation, or reduced power — fuel pressure that drifts out of range can cause stalling, so fix it soon.
Common symptoms
What you'll notice
- Loss of power or poor acceleration
- Hard starting or long cranking
- Rough idle, hesitation, or possible stalling
- Check-engine light on
Common causes
Most likely first
- Faulty fuel pressure regulator (regulator B)Likely
- Weak or failing fuel pumpCommon
- Restricted fuel filter or kinked supply/return lineCommon
- Faulty fuel pressure sensor or its wiringLess often
- Fuel leak lowering rail pressureLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check for companion fuel-pressure codes (P0087, P0088).
- Measure actual fuel rail pressure with a mechanical gauge and compare to spec.
- Inspect for a clogged fuel filter and kinked or restricted fuel lines.
- Verify the fuel pump delivers rated pressure and volume.
- Replace the pressure regulator if pressure stays out of range with good supply, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2293?+
Light driving is usually possible, but unstable fuel pressure can cause stalling or a no-restart, so repair it promptly.
Can I just clear P2293?+
It will return as soon as the module sees pressure out of range again unless the underlying fuel fault is fixed.
Related codes
Often seen with P2293
Read & clear P2293 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX