Error code

OBD2 P0092

OBD2P0092
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Fuel Pressure Regulator 1 Control Circuit High.

Severity

moderateThe vehicle may still be drivable but performance issues and potential safety concerns should prompt immediate attention.

Summary

P0092 indicates that there is an issue with the Fuel Pressure Regulator 1 Control Circuit being too high in voltage, typically found on gasoline direct injection (GDI) or diesel engines.

Symptoms

  • Hard starting
  • No starting
  • Poor performance
  • Poor fuel economy
  • Rough idle
  • Cylinder misfire

Common Causes

  • Wire harness problem due to poor repair practices, bad wire routing, or damage
  • Faulty solenoid coil in the Fuel Rail Pressure (FRP) regulator

Diagnosis

  1. Check the wire harness for damage
  2. Inspect the FRP regulator connector for bent pins, corrosion, or water entry
  3. Test resistance in the FRP regulator circuit

Fixes

  • Replace damaged wire harness or faulty FRP regulator

FAQ

What should I do if my car has P0092?

You should inspect the wiring and connectors related to the fuel pressure regulator, and test for resistance issues. If problems are found, replace damaged components.

Can an alternator cause this code?

Yes, excessive voltage from a faulty alternator can trigger P0092 along with other unrelated trouble codes.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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