P0003 - Fuel Volume Regulator Control Circuit Low

The PCM detected a fuel-pressure control fault or leak condition that can cause hard starting, reduced power, or poor fuel delivery.

Code Overview

The PCM detected a fuel-pressure control fault or leak condition that can cause hard starting, reduced power, or poor fuel delivery.

Common Causes

• Failing regulator, valve, or pump
• Restricted fuel supply or leak
• Wiring or connector issue
• Sensor feedback fault

Diagnostic Steps

1. Check actual fuel pressure against the requested value
2. Inspect regulator, valve, and pump connectors
3. Look for leaks, restrictions, or aerated fuel
4. Verify power, ground, and control signals before replacing the pump or regulator

Likely Repairs & Cost Guides

Use test results to confirm the fault before pricing the repair.

Related OBD Codes

Browse the closest code-family pages when the same fault pattern often shows up nearby.

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.