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TuningBot DTC Database · v4.37.15

P00C8 Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainFuelOBD2

What P00C8 means

P00C8
Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open Generic · fuel Data confidence 65%

The control module detected an interruption (open circuit) in the Fuel Pressure Regulator A Solenoid Supply Voltage Control circuit, so the expected electrical continuity was not present.

Symptoms

  • Possible hard starting or long cranking
  • Possible reduced power or cutting out
  • MIL illuminated

Possible causes

  • Low-pressure fuel supply fault (pump, filter, lines)
  • High-pressure pump wear or fault
  • Pressure regulator / volume control valve fault
  • Fuel pressure sensor fault
  • Internal leakage (injector return flow too high)

Recommended checks

  • Read specified vs actual rail pressure at cranking, idle and load
  • Check low-pressure supply (pressure/volume) first
  • Check control valve/regulator operation
  • Measure injector return flow where applicable
  • Inspect wiring and connectors of pressure components

Related and nearby codes

How to read P00C8

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

0C8

Specific fault index within the subsystem.

Frequently asked questions about P00C8

What does P00C8 mean?

Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open. The control module detected an interruption (open circuit) in the Fuel Pressure Regulator A Solenoid Supply Voltage Control circuit, so the expected electrical continuity was not present.

Is P00C8 generic or manufacturer-specific?

P00C8 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P00C8 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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