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AutoCodes - Generic - P0001

P0001 Code - Fuel Volume Regulator Control Circuit/Open

- Code Popularity: 128,348 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Mar 02, 2021
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|Code P0001 Possible Causes

  • Faulty Fuel Volume Regulator (FVR) Control Valve
  • Fuel Volume Regulator (FVR) Control Valve harness is open or shorted
  • Fuel Volume Regulator (FVR) Control Valve circuit poor electrical connection

|How do I Fix the Code P0001?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P0001?

Labor: 1.0

The cost of diagnosing the P0001 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code P0001 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|Code P0001 Description

This fault code is stored in the engine control module when the system cannot correctly control the fuel pressure. The engine control module uses feedback from the fuel pressure sensor to monitor fuel pressure. The fuel pressure regulator circuit integrity is also monitored to ensure the circuit and component are functioning correctly.
Normally manufacturers will support data parameters for actual and desired fuel pressure.
A number of issues may cause this fault code to be set such as a faulty fuel rail pressure sensor, a mechanical fault with the fuel volume regulator could cause the valve to become stuck. An electrical fault such as an open circuit in the fuel volume regulator on a system with a normally closed valve will also cause this situation. A short circuit on the control wire of a normally open fuel volume regulator will also cause this fault.
A fault in the fuel injector return system will cause the fuel pressure to be lower than expected. This causes fuel from the high-pressure circuit to be leaked back to the low-pressure circuit. A faulty maximum pressure relief valve will also cause this situation.
The high-pressure pump should also be tested to ensure it is capable of delivering the required volume of fuel.

OBDII Code P0001 - Fuel Volume Regulator Control Circuit/Open -
P0001 Code - Fuel Volume Regulator Control Circuit/Open

|Need More Information on the P0001 Code?

Need more information on how to fix the P0001 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the P0001 Code?

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|Code P0001 comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0001 code? Have you replaced any parts?
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