P0003moderate severityPowertrain
Fuel Volume Regulator Control Circuit Low
on 2007 Isuzu Ascender 4.2L I6 · 4WD
What this code means
The PCM detected a lower than expected signal from the fuel volume regulator control circuit.
Symptoms
- Check Engine Light
- Low fuel pressure
- Engine stalling
- Rough idle
Common causes
- Short in regulator circuit
- Faulty regulator
- Low battery voltage
- Corroded connector
Diagnostic steps
- Check circuit voltage
- Inspect wiring for shorts
- Test regulator
- Verify battery voltage
Repair notes
Repair short circuit or replace regulator.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
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