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DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P00C8

P00C8Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open

P00C8 indicates that the powertrain control module has detected an open circuit or supply voltage fault on the control circuit for the fuel pressure regulator A solenoid. The computer commands a specific current to the solenoid, but the circuit does not carry the expected voltage, so the regulator cannot be controlled as intended.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering and auxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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