P0002moderate severityPowertrain
Fuel Volume Regulator Control Circuit Range/Performance
on 2003 GMC Envoy 4.2L I6 · 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
P0001
Fuel Volume Regulator Control Circuit/Open
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1