P0004
Fuel Volume Regulator Control Circuit High
Generic code
Fuel and Air Metering
High severity
Hard repair
Free on OBD DashX
Want real-world data on P0004?
See which problems come with P0004, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
What P0004 means
- The fault code P0004 indicates that there is an issue with the circuit that controls the fuel volume regulator. This may cause the engine to have inconsistent fuel pressure, which can result in poor performance or stalling.
Possible symptoms
- Illuminated check engine light
- Decreased fuel efficiency
- Poor acceleration or power
- Stalling or difficulty starting the engine
Possible causes
- Faulty fuel volume regulator
- Shorted or open circuit in the wiring
- Failed engine control module (ECM)
- Corroded or damaged connector pins
Related parts
- Fuel Volume Regulator: Fuel Volume Regulator controls the amount of fuel in the fuel injectors. This car's regulator has a problem which will lead to poor fuel economy & engine stalling
Possible solutions
- Replace the fuel volume regulator
- Check and repair any damaged or corroded wiring or connections
- Replace the engine control module (ECM) if necessary
Free on OBD DashX
P0004 on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
Open P0004 No sign-up needed · available in 10 languagesScan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.