P0003
PowertrainFuel Air Meteringmoderate severityFuel Volume Regulator Control Circuit Low
What P0003 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
Where to start: Repair short circuit or replace regulator.
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