OBD Guide
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P0001

Fuel Volume Regulator Control Circuit/Open

P0001 is an OBD-II diagnostic trouble code meaning: Fuel Volume Regulator Control Circuit/Open. Common causes: broken wiring in the fuel volume regulator circuit, short circuit in the electrical circuit. Estimated repair cost: $89–278.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$89–278 (est.)

Symptoms

  • Unstable engine operation at idle
  • Reduced engine power
  • Difficulty starting the engine
  • Increased fuel consumption
  • Black smoke from the exhaust pipe
  • Jerks when accelerating
  • Activating emergency engine operation

Causes

  • Broken wiring in the fuel volume regulator circuit
  • Short circuit in the electrical circuit
  • Malfunction of the fuel volume regulator itself
  • Oxidation or corrosion of connectors
  • Engine control unit (ECU) malfunction
  • Low voltage in the on-board network
  • Mechanical damage to wiring

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check the voltage in the vehicle's on-board network
  3. Visually inspect the wiring and connectors of the fuel volume regulator
  4. Check wiring integrity with a multimeter
  5. Clean oxidized contacts and connectors
  6. Check the resistance of the fuel volume regulator
  7. If necessary, replace the faulty regulator
  8. Repair or replace damaged wiring
  9. Clear error codes and test drive
  10. Recheck the system with a diagnostic scanner

Related codes

P0002P0003P0089P0087P0088P1181P1182

Error P0001 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0001 code mean?

P0001 is an OBD-II diagnostic trouble code that indicates: Fuel Volume Regulator Control Circuit/Open

What causes a P0001 error code?

The most common causes of P0001 include: Broken wiring in the fuel volume regulator circuit; Short circuit in the electrical circuit; Malfunction of the fuel volume regulator itself; Oxidation or corrosion of connectors.

How do I fix a P0001 diagnostic trouble code?

To fix P0001: Connect a diagnostic scanner and read all error codes. Check the voltage in the vehicle's on-board network. Visually inspect the wiring and connectors of the fuel volume regulator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0001?

Limited driving only, diagnose soon

How much does it cost to fix P0001?

The estimated repair cost for P0001 is $89–278. Actual cost depends on your vehicle, location, and labor rates.

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