Fuel Volume Regulator Control Circuit Range/Performance
The P0002 code indicates a problem with the fuel volume regulator control circuit, which is part of the fuel system that manages fuel pressure and volume delivered to the engine. The Powertrain Control Module (PCM) has detected that the actual fuel pressure or volume does not match the desired value, or the control circuit is out of expected range. This can be caused by a faulty fuel volume regulator, wiring issues, or a malfunctioning fuel pump.
01. Most Common Causes
- Faulty fuel volume regulator
- Wiring or connector issues in the fuel volume regulator circuit
- Malfunctioning fuel pump
- Clogged fuel filter or fuel lines
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Engine hesitation or surging
- Poor fuel economy
- Hard starting or stalling
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for other related codes.
Step 2: Inspect the fuel volume regulator and its wiring for damage, corrosion, or loose connections.
Step 3: Test the fuel pressure using a fuel pressure gauge to see if it meets specifications.
Step 4: Check the fuel filter and lines for clogs or restrictions.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as it can cause poor engine performance, stalling, or damage to the fuel system. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
The cost to fix P0002 typically ranges from $50 to $150 for diagnosis and repair, but can be higher if the fuel pump or regulator needs replacement.