P0092: Fuel Pressure Regulator 1 Control Circuit High

What does P0092 mean?

The fuel pressure regulator 1 control circuit is above its expected electrical limit. The number 1 identifies a regulator circuit, not cylinder 1 or necessarily the first pump on the vehicle.

Generic OBD-II definition: Fuel Pressure Regulator 1 Control Circuit High. Confirm applicability in your vehicle service information.

Common causes

• Control wire shorted to voltage
• Faulty regulator winding
• Open or damaged monitored wiring

Symptoms

• Difficult starting
• Reduced power
• Rough running or check engine light

Diagnostic focus

Distinguish P0092 from P0088: this code monitors the regulator circuit, while P0088 describes excessive reported rail pressure. Both can occur, but they require different checks.

Can I keep driving with P0092?

Severity: High Avoid driving if the engine stalls, leaks fuel, or runs roughly. High-pressure fuel testing belongs with a qualified technician; never loosen a fuel rail or injector pipe to check pressure.

If the check engine light is flashing or the car runs badly, stop driving and have it checked.

Typical fixes

• Inspect the regulator wiring for heat damage and corrosion
• Identify the regulator control pins from the wiring diagram and check for short-to-power or open connections.
• Repair the verified wiring fault or replace a regulator that fails testing

Sources & review

• OBD-Codes.com: P0092
• TroubleCodes.net: generic code definitions

Definitions and diagnostic background checked 2026-11-06. Generic guidance, not a substitute for the service procedure for your exact year, engine, and transmission.