P0092 means Fuel Pressure Regulator 1 Control Circuit High. The fuel pressure regulator 1 control circuit voltage is higher than expected, as if open or shorted to voltage. It is a generic OBD-II code, so the definition is the same on any make, but the most likely cause varies by engine; confirm with a scan tool and the service information for your vehicle before buying parts.
What P0092 means
Modern engines measure boost and fuel rail pressure and compare them with a desired value calculated from engine speed, load and throttle. When actual pressure falls short of desired for long enough, the computer sets a code and often reduces power to protect the engine. Watching desired and actual values side by side on a scan tool shows whether the shortfall is constant or only appears under load.
P0092 symptoms
- Check engine light
- Hard starting or stalling
- Loss of power or reduced-power mode
Common causes of P0092
- Open wiring or a short to voltage
- Failed regulator
- Loose connector
How to diagnose P0092
- Check the regulator’s connector and wiring
- Watch desired vs actual rail pressure on a scan tool
- Check the fuel filter and lift pump supply
- Look for external leaks
Can you drive with P0092?
Short distances only; the engine may stall or limit power.
P0092 tips
A high-circuit code usually means an open circuit, such as an unplugged or broken connector; check it first, especially after fuel system work.
Will P0092 clear itself?
If the fault stops, the computer turns off the check engine light by itself after several drive cycles without seeing it again, and the code stays in memory as history for a while. Clearing P0092 with a scan tool after a repair is fine, but if the cause is still there the code returns, sometimes within one drive. Disconnecting the battery also clears codes on most vehicles, but it erases learned fuel trims and idle settings as well.
Related codes
| Code | Meaning |
|---|---|
| P0090 | Fuel Pressure Regulator 1 Control Circuit |
| P0091 | Fuel Pressure Regulator 1 Control Circuit Low |
| P0088 | Fuel Rail/System Pressure Too High |
Guides that help
When it is more than a sensor
Our superchargers page lists supercharger kits, and diesel owners can read the 6.7 Cummins turbo guide. If a failed turbo or fuel pump has damaged the engine, compare engines by code on our engines page.
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