Powertrain
generic / SAE
P0004
Fuel Volume Regulator A Control Circuit High
The ECU sees the control voltage of fuel volume regulator A above the expected range, typically a short to power or open ground return.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number– / 04
Possible causes
- Wiring shorted to battery voltage high
- Open ground return path medium
- Connector pins corroded - high contact resistance low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–500 €
- Estimated time: 0.5–2.5 h
- Component: fuel volume regulator
- Component: fvr wiring
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012