What Does P0002 Mean?
P0002 means the fuel volume regulator (FVR) control circuit is not performing within its expected range. The ECM is commanding the FVR solenoid but the resulting fuel rail pressure does not match the desired target within acceptable tolerances. This indicates the solenoid is responding but not correctly — it may be sluggish, partially stuck, or the circuit has excessive resistance. Symptoms include rough running, hesitation on acceleration, and possible fuel rail pressure fluctuations.
Common Causes
35%
Fuel volume regulator solenoid sticking or responding sluggishly due to internal contamination or wear
25%
High resistance in the FVR control circuit wiring causing reduced solenoid current and slow response
20%
Contaminated or degraded fuel causing internal deposits on the FVR metering valve
10%
Fuel rail pressure sensor providing inaccurate readings, making the ECM think the FVR is underperforming
10%
Mechanical wear in the high-pressure fuel pump allowing internal fuel bypass around the FVR
Diagnostic Steps
1
Monitor fuel rail pressure live data while commanding different FVR duty cycles — pressure should change proportionally and smoothly as duty cycle changes from 0% to 100%.
2
Measure FVR solenoid coil resistance (typically 1-6 ohms) and compare to manufacturer specification — high resistance indicates a degraded coil.
3
Inspect the FVR solenoid connector for corrosion, loose pins, or contamination that could cause intermittent high resistance.
4
Replace the fuel filter and check for fuel contamination — dark, gritty, or foul-smelling fuel suggests contamination that can affect the FVR valve.
5
Compare commanded fuel rail pressure vs. actual fuel rail pressure at idle and at 2,500 RPM — deviation greater than 10% indicates a flow regulation issue.
Estimated Repair Cost
$200 - $900
Parts + labor, varies by vehicle and location
P0002 means the fuel volume regulator (FVR) control circuit is not performing within its expected range. The ECM is commanding the FVR solenoid but the resulting fuel rail pressure does not match the desired target within acceptable tolerances. This indicates the solenoid is responding but not corre...
The most common cause of P0002 (Fuel Volume Regulator Control Circuit Range/Performance) is: Fuel volume regulator solenoid sticking or responding sluggishly due to internal contamination or wear
Typical repair costs for P0002 range from $200 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle may be drivable for short distances at reduced performance, but the fuel pressure instability can cause stalling under load. Avoid highway driving and extended trips until the issue is resolved. Continued driving risks damage to the high-pressure fuel pump and injectors.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0002 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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