P0002 Fuel Volume Regulator Control Circuit Range/Performance

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P0002 Fuel Volume Regulator Control Circuit Range/Performance

OBD-II Trouble Code Technical Description

Fuel Volume Regulator Control Circuit Range/Performance

What does that mean?

This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles, including but not limited to Ford, Dodge, Vauxhall, VW, Mazda, etc. Although generic, the specific repair steps may vary depending on make/model.

A P0002 is not a very common trouble code and is more often seen on common rail diesel (CRD) and/or diesel engine, and gasoline direct injection (GDI) equipped vehicles.

This code relates to the the electrical system as part of the fuel volume regulator system. Automotive fuel systems consist of many components, the fuel tank, fuel pump, filter, lines, injectors, etc. One component in high pressure fuel systems is a high pressure fuel pump. It’s job is to increase the fuel pressure for the very high pressure needed at the fuel rail for the injectors. These high pressure fuel pumps have a low pressure side and high pressure side, and a fuel volume regulator which controls the pressure. For this P0002 code, it refers to an electrical reading that is outside normal parameters.

This code is related to P0001, P0003, and P0004.

Symptoms

Symptoms of a P0002 DTC may include:

  • Malfunction indicator lamp (MIL) illumination
  • Vehicle won’t start
  • "Limp mode" enabled and/or lack of power
  • Potential Causes

    Potential causes of this engine code may include:

  • Failed fuel volume regulator (FVR) solenoid
  • FVR wiring/harness electrical problem (wiring short, corrosion, etc.)
  • Possible Solutions

    First, check for known Technical Service Bulletins (TSBs) for your year/make/model. If there is a known TSB that addresses this issue, it can save you time & money during diagnosis.

    Next, you’ll want to visually inspect the wiring and connectors pertaining to the fuel volume regulator circuit and system. Look for obvious breaks in the wires, corrosion, etc. Repair as necessary.

    The fuel volume regulator (FVR) is a two-wire device with the wires both going back to the PCM. You should not apply direct battery voltage to the wires or you could damage the system.

    Refer to a factory service manual for more specific troubleshooting steps for your year/make/model/engine.

    Need help?

    Let us fix your problem. You are most welcome our diagnosis experts have in most cases the knowledge and skills to find the cause of the error code p0002 and to solve the problems.

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    "Delete Error Code Permanently, Disable DTC Error Code Function for p0002 in the ECU"

    In extreme cases, we even have the option to permanently remove the specific DTC p0002 and disable the function of the specific error code in the ECU. All other fault code functions will then continue to work to protect the engine. This is different from clearing an error code with a diagnostic device. We have the option to permanently remove the function of the specific error code, so that it never comes back. Also emergency running that occurs on the specific error code can be solved in most cases.

    Of course we prefer to first try to solve the cause of the error code, but sometimes the only solution is to permanently disable the DTC function of p0002.

    Make an appointment for permanent removal of p0002