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TuningBot DTC Database · v4.37.15

P2370 Fuel Volume Regulator B Control Circuit/Open

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

P · PowertrainFuelOBD2

What P2370 means

P2370
Fuel Volume Regulator B Control Circuit/Open Generic · fuel Data confidence 65%

The control module detected an interruption (open circuit) in the Fuel Volume Regulator B 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 P2370

P

Powertrain: engine, transmission and driveline systems.

2

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

370

Specific fault index within the subsystem.

Frequently asked questions about P2370

What does P2370 mean?

Fuel Volume Regulator B Control Circuit/Open. The control module detected an interruption (open circuit) in the Fuel Volume Regulator B Control circuit, so the expected electrical continuity was not present.

Is P2370 generic or manufacturer-specific?

P2370 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2370 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

ECU tuningDyno-tested results by model and engine See the results →

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