P0002moderate severityPowertrain
Fuel Volume Regulator Control Circuit Range/Performance
on 2002 Dodge Ram 2500 5.9L I6 Cummins Diesel · 4WD
What this code means
The fuel volume regulator is not operating within expected parameters. The PCM monitors fuel pressure and compares it to the commanded value.
Symptoms
- Check Engine Light
- Engine surge
- Unstable idle
- Reduced power
Common causes
- Fuel volume regulator sticking
- Low fuel pressure
- Contaminated fuel
- Wiring issue
Diagnostic steps
- Monitor fuel pressure with scan tool
- Compare commanded vs actual pressure
- Inspect regulator for debris
- Check wiring harness
Repair notes
Clean or replace fuel volume regulator.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0016
Crankshaft Position/Camshaft Position Correlation Bank 1 Sensor A