How much does it cost to fix a fuel system problem?

Costs vary widely from $100 for a sensor replacement to $800+ for a fuel pump or injector replacement. A proper diagnosis is essential to avoid unnecessary parts replacement.

What causes fuel system codes?

Common causes include faulty fuel pressure regulators, clogged fuel filters, failing fuel pumps, leaking or clogged injectors, and wiring issues in the fuel system control circuits.

P0001

Fuel Volume Regulator Control Circuit/Open

Moderatefuel system

Overview

The P0001 code indicates a fuel volume regulator control circuit/open condition has been detected by the vehicle's powertrain control module (PCM). This code relates to the fuel delivery and metering system, which is responsible for providing the correct amount of fuel to the engine. When this code is stored, the fuel system is not operating within the expected parameters, which can affect engine performance and fuel economy.

Symptoms

Engine hesitation during acceleration
Loss of power during driving
Strong fuel odor from the engine bay
Check Engine Light (MIL) illuminated

Common Causes

Leaking or clogged fuel injectors
Faulty fuel pressure regulator
Wiring issues in the fuel system circuit
Clogged or dirty fuel filter

Diagnosis Steps

1Connect an OBD-II scanner and read all stored trouble codes and freeze frame data
2Check fuel pressure using a fuel pressure gauge; compare to manufacturer specifications
3Inspect fuel lines, connections, and injectors for leaks or damage
4Test the fuel pressure regulator for proper operation
5Check the fuel pump relay and electrical connections

Estimated Repair Cost

$150 — $800

Cost varies by vehicle, location, and repair shop. Includes parts and labor.

Commonly Affected Vehicles

Honda CivicNissan AltimaBMW 3 SeriesToyota Camry

Related Codes

P0172 P0201 P0171

More Fuel System Codes

P0002Fuel Volume Regulator Control Circuit Range/Performance

Moderate

P0003Fuel Volume Regulator Control Circuit Low

Moderate

P0004Fuel Volume Regulator Control Circuit High

Moderate

P0005Fuel Shutoff Valve "A" Control Circuit/Open

Moderate

P0006Fuel Shutoff Valve "A" Control Circuit Low

Moderate

P0007Fuel Shutoff Valve "A" Control Circuit High

Moderate

Frequently Asked Questions

It depends on the severity. Minor sensor issues may allow short-distance driving, but fuel pressure or leak codes should be addressed immediately as they can cause stalling, engine damage, or fire hazards.