P0092
Fuel Pressure Regulator A Control Circuit High
Fuel delivery / pressure
Generic OBD-II
High
What it means
P0092 means the ECM detected high voltage in the control circuit for fuel pressure regulator A — the solenoid the computer uses to set fuel-rail pressure. A high reading usually points to a short to power or an open in that circuit. When the ECM can't properly command the regulator, fuel pressure can drift out of range, causing hard starting, rough running, or stalling.
High
Can I keep driving? Limited — if fuel pressure control is lost, the engine may run rough, be hard to start, or stall. It may still run, but diagnose it before driving far.
Common symptoms
What you'll notice
- Check-engine light on
- Hard starting or long crank
- Rough running, hesitation, or stalling
- Reduced power and poor fuel economy
Common causes
Most likely first
- Short-to-power or open in the fuel pressure regulator control wiring (high voltage signal)Likely
- Faulty fuel pressure regulator / control solenoidCommon
- Corroded or loose connector at the regulatorCommon
- Faulty ECM/PCM driver (rare — check wiring and regulator first)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and confirm the fault is current.
- Inspect the regulator's connector and control wiring for a short to power, an open, or corrosion.
- Measure the regulator solenoid's resistance and compare to spec.
- Verify the ECM is commanding the circuit and check the control-wire voltage.
- Repair the wiring or replace the regulator as indicated, then clear and re-test with a fuel-pressure gauge.
FAQ
Quick answers
Is it safe to drive with P0092?+
Not for long. Losing fuel-pressure control can cause hard starting, stalling, or a lean/rich condition. Have it diagnosed promptly to avoid being stranded.
Can I just clear P0092?+
It comes back once the ECM re-checks the regulator circuit. The wiring short/open or a failed regulator has to be repaired for the code to stay off.
Related codes
Often seen with P0092
Read & clear P0092 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