P0092 Code - Fuel Pressure Regulator 1 Control Circuit High

What Does P0092 Mean?

The Engine Control Module (ECM) uses commanded fuel pump flow to determine a desired fuel rail pressure. The actual fuel pressure is monitored using the Fuel Rail Pressure (FRP) Sensor.

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What are the common causes of P0092 ?

• Faulty IMRC actuator relay (if equipped)
• A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
• Fuel with a large percentage of sulfur will clog the DPF quickly

What are the symptoms of P0092 ?

Symptoms typically include a no start condition, extended cranking before engine starts, hesitation upon acceleration, and decreased fuel mileage, along with a stored trouble code and malfunction indicator lamp illumination. Other codes will also likely accompany this type of code including engine misfire codes, lean and/or rich exhaust codes, and mass airflow sensor codes.

How do you troubleshoot P0092 ?

• Replacing the fuel pump
• Replacing the fuel pressure regulator
• Replacing the fuel filter
• Repairing or replacing faulty wiring
• Replacing the Engine Control Module
• Replacing the injectors
• Replacing the fuel pump relay

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